Rmove the client suggestions APIs and related codes.

Test: atest CtsAutoFillServiceTestCases
Bug: 301307224
Bug: 296484290
Bug: 288109790
Change-Id: I900b3584e743a70fe42aaf8a3b886c0f6f344375

8 files changed, 57 insertions, 764 deletions

diff --git a/core/api/current.txt b/core/api/current.txt
index d037c31e5af7..7f06fce14bc3 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -54652,7 +54652,6 @@ package android.view.autofill {
 
   public final class AutofillManager {
     method public void cancel();
-    method public void clearAutofillRequestCallback();
     method public void commit();
     method public void disableAutofillServices();
     method @Nullable public android.content.ComponentName getAutofillServiceComponentName();
@@ -54679,7 +54678,6 @@ package android.view.autofill {
     method public void registerCallback(@Nullable android.view.autofill.AutofillManager.AutofillCallback);
     method public void requestAutofill(@NonNull android.view.View);
     method public void requestAutofill(@NonNull android.view.View, int, @NonNull android.graphics.Rect);
-    method @RequiresPermission(android.Manifest.permission.PROVIDE_OWN_AUTOFILL_SUGGESTIONS) public void setAutofillRequestCallback(@NonNull java.util.concurrent.Executor, @NonNull android.view.autofill.AutofillRequestCallback);
     method public void setUserData(@Nullable android.service.autofill.UserData);
     method public boolean showAutofillDialog(@NonNull android.view.View);
     method public boolean showAutofillDialog(@NonNull android.view.View, int);
@@ -54700,10 +54698,6 @@ package android.view.autofill {
     field public static final int EVENT_INPUT_UNAVAILABLE = 3; // 0x3
   }
 
-  public interface AutofillRequestCallback {
-    method public void onFillRequest(@Nullable android.view.inputmethod.InlineSuggestionsRequest, @NonNull android.os.CancellationSignal, @NonNull android.service.autofill.FillCallback);
-  }
-
   public final class AutofillValue implements android.os.Parcelable {
     method public int describeContents();
     method public static android.view.autofill.AutofillValue forDate(long);
@@ -55155,12 +55149,10 @@ package android.view.inputmethod {
     ctor public InlineSuggestionsRequest.Builder(@NonNull java.util.List<android.widget.inline.InlinePresentationSpec>);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder addInlinePresentationSpecs(@NonNull android.widget.inline.InlinePresentationSpec);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest build();
-    method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setClientSupported(boolean);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setExtras(@NonNull android.os.Bundle);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setInlinePresentationSpecs(@NonNull java.util.List<android.widget.inline.InlinePresentationSpec>);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setInlineTooltipPresentationSpec(@NonNull android.widget.inline.InlinePresentationSpec);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setMaxSuggestionCount(int);
-    method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setServiceSupported(boolean);
     method @NonNull public android.view.inputmethod.InlineSuggestionsRequest.Builder setSupportedLocales(@NonNull android.os.LocaleList);
   }
 
diff --git a/core/java/android/service/autofill/FillRequest.java b/core/java/android/service/autofill/FillRequest.java
index 8cf2ce49712a..7ec14830b0af 100644
--- a/core/java/android/service/autofill/FillRequest.java
+++ b/core/java/android/service/autofill/FillRequest.java
@@ -97,8 +97,6 @@ public final class FillRequest implements Parcelable {
      */
     public static final @RequestFlags int FLAG_VIEW_NOT_FOCUSED = 0x10;
 
-    // The flag value 0x20 has been defined in AutofillManager.
-
     /**
      * Indicates the request supports fill dialog presentation for the fields, the
      * system will send the request when the activity just started.
diff --git a/core/java/android/view/autofill/AutofillManager.java b/core/java/android/view/autofill/AutofillManager.java
index 34e4c37de1b5..a40ff643379a 100644
--- a/core/java/android/view/autofill/AutofillManager.java
+++ b/core/java/android/view/autofill/AutofillManager.java
@@ -16,7 +16,6 @@
 
 package android.view.autofill;
 
-import static android.Manifest.permission.PROVIDE_OWN_AUTOFILL_SUGGESTIONS;
 import static android.service.autofill.FillRequest.FLAG_IME_SHOWING;
 import static android.service.autofill.FillRequest.FLAG_MANUAL_REQUEST;
 import static android.service.autofill.FillRequest.FLAG_PASSWORD_INPUT_TYPE;
@@ -31,12 +30,10 @@ import static android.view.autofill.Helper.sVerbose;
 import static android.view.autofill.Helper.toList;
 
 import android.accessibilityservice.AccessibilityServiceInfo;
-import android.annotation.CallbackExecutor;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresFeature;
-import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
@@ -53,19 +50,15 @@ import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.graphics.Rect;
 import android.metrics.LogMaker;
-import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.CancellationSignal;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.ICancellationSignal;
 import android.os.Looper;
 import android.os.Parcelable;
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.service.autofill.AutofillService;
-import android.service.autofill.FillCallback;
 import android.service.autofill.FillEventHistory;
 import android.service.autofill.Flags;
 import android.service.autofill.IFillCallback;
@@ -89,7 +82,6 @@ import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.accessibility.AccessibilityNodeProvider;
 import android.view.accessibility.AccessibilityWindowInfo;
-import android.view.inputmethod.InlineSuggestionsRequest;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.CheckBox;
 import android.widget.DatePicker;
@@ -119,7 +111,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;
-import java.util.concurrent.Executor;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import sun.misc.Cleaner;
@@ -189,12 +180,6 @@ import sun.misc.Cleaner;
  * shows an autofill save UI if the value of savable views have changed. If the user selects the
  * option to Save, the current value of the views is then sent to the autofill service.
  *
- * <p>There is another choice for the application to provide it's datasets to the Autofill framework
- * by setting an {@link AutofillRequestCallback} through
- * {@link #setAutofillRequestCallback(Executor, AutofillRequestCallback)}. The application can use
- * its callback instead of the default {@link AutofillService}. See
- * {@link AutofillRequestCallback} for more details.
- *
  * <h3 id="additional-notes">Additional notes</h3>
  *
  * <p>It is safe to call <code>AutofillManager</code> methods from any thread.
@@ -334,7 +319,6 @@ public final class AutofillManager {
     /** @hide */ public static final int FLAG_ADD_CLIENT_DEBUG = 0x2;
     /** @hide */ public static final int FLAG_ADD_CLIENT_VERBOSE = 0x4;
     /** @hide */ public static final int FLAG_ADD_CLIENT_ENABLED_FOR_AUGMENTED_AUTOFILL_ONLY = 0x8;
-    /** @hide */ public static final int FLAG_ENABLED_CLIENT_SUGGESTIONS = 0x20;
 
     // NOTE: flag below is used by the session start receiver only, hence it can have values above
     /** @hide */ public static final int RECEIVER_FLAG_SESSION_FOR_AUGMENTED_AUTOFILL_ONLY = 0x1;
@@ -676,11 +660,6 @@ public final class AutofillManager {
     @GuardedBy("mLock")
     private boolean mEnabledForAugmentedAutofillOnly;
 
-    @GuardedBy("mLock")
-    @Nullable private AutofillRequestCallback mAutofillRequestCallback;
-    @GuardedBy("mLock")
-    @Nullable private Executor mRequestCallbackExecutor;
-
     private boolean mScreenHasCredmanField;
 
     /**
@@ -2434,38 +2413,6 @@ public final class AutofillManager {
         return new AutofillId(parent.getAutofillViewId(), virtualId);
     }
 
-    /**
-     * Sets the client's suggestions callback for autofill.
-     *
-     * @see AutofillRequestCallback
-     *
-     * @param executor specifies the thread upon which the callbacks will be invoked.
-     * @param callback which handles autofill request to provide client's suggestions.
-     */
-    @RequiresPermission(PROVIDE_OWN_AUTOFILL_SUGGESTIONS)
-    public void setAutofillRequestCallback(@NonNull @CallbackExecutor Executor executor,
-            @NonNull AutofillRequestCallback callback) {
-        if (mContext.checkSelfPermission(PROVIDE_OWN_AUTOFILL_SUGGESTIONS)
-                != PackageManager.PERMISSION_GRANTED) {
-            throw new SecurityException("Requires PROVIDE_OWN_AUTOFILL_SUGGESTIONS permission!");
-        }
-
-        synchronized (mLock) {
-            mRequestCallbackExecutor = executor;
-            mAutofillRequestCallback = callback;
-        }
-    }
-
-    /**
-     * clears the client's suggestions callback for autofill.
-     */
-    public void clearAutofillRequestCallback() {
-        synchronized (mLock) {
-            mRequestCallbackExecutor = null;
-            mAutofillRequestCallback = null;
-        }
-    }
-
     @GuardedBy("mLock")
     private void startSessionLocked(@NonNull AutofillId id, @NonNull Rect bounds,
             @NonNull AutofillValue value, int flags) {
@@ -2526,13 +2473,6 @@ public final class AutofillManager {
                 }
             }
 
-            if (mAutofillRequestCallback != null) {
-                if (sDebug) {
-                    Log.d(TAG, "startSession with the client suggestions provider");
-                }
-                flags |= FLAG_ENABLED_CLIENT_SUGGESTIONS;
-            }
-
             mService.startSession(client.autofillClientGetActivityToken(),
                     mServiceClient.asBinder(), id, bounds, value, mContext.getUserId(),
                     mCallback != null, flags, clientActivity,
@@ -2890,28 +2830,6 @@ public final class AutofillManager {
         }
     }
 
-    private void onFillRequest(InlineSuggestionsRequest request,
-            CancellationSignal cancellationSignal, FillCallback callback) {
-        final AutofillRequestCallback autofillRequestCallback;
-        final Executor executor;
-        synchronized (mLock) {
-            autofillRequestCallback = mAutofillRequestCallback;
-            executor = mRequestCallbackExecutor;
-        }
-        if (autofillRequestCallback != null && executor != null) {
-            final long ident = Binder.clearCallingIdentity();
-            try {
-                executor.execute(() ->
-                        autofillRequestCallback.onFillRequest(
-                                request, cancellationSignal, callback));
-            } finally {
-                Binder.restoreCallingIdentity(ident);
-            }
-        } else {
-            callback.onSuccess(null);
-        }
-    }
-
     /** @hide */
     public static final int SET_STATE_FLAG_ENABLED = 0x01;
     /** @hide */
@@ -4495,23 +4413,6 @@ public final class AutofillManager {
         }
 
         @Override
-        public void requestFillFromClient(int id, InlineSuggestionsRequest request,
-                IFillCallback callback) {
-            final AutofillManager afm = mAfm.get();
-            if (afm != null) {
-                ICancellationSignal transport = CancellationSignal.createTransport();
-                try {
-                    callback.onCancellable(transport);
-                } catch (RemoteException e) {
-                    Slog.w(TAG, "Error requesting a cancellation", e);
-                }
-
-                afm.onFillRequest(request, CancellationSignal.fromTransport(transport),
-                        new FillCallback(callback, id));
-            }
-        }
-
-        @Override
         public void notifyFillDialogTriggerIds(List<AutofillId> ids) {
             final AutofillManager afm = mAfm.get();
             if (afm != null) {
diff --git a/core/java/android/view/autofill/AutofillRequestCallback.java b/core/java/android/view/autofill/AutofillRequestCallback.java
deleted file mode 100644
index e632a5849471..000000000000
--- a/core/java/android/view/autofill/AutofillRequestCallback.java
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.view.autofill;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.os.CancellationSignal;
-import android.service.autofill.FillCallback;
-import android.view.inputmethod.InlineSuggestionsRequest;
-
-/**
- * <p>This class is used to provide some input suggestions to the Autofill framework.
- *
- * <P>When the user is requested to input something, Autofill will try to query input suggestions
- * for the user choosing. If the application want to provide some internal input suggestions,
- * implements this callback and register via
- * {@link AutofillManager#setAutofillRequestCallback(java.util.concurrent.Executor,
- * AutofillRequestCallback)}. Autofill will callback the
- * {@link #onFillRequest(InlineSuggestionsRequest, CancellationSignal, FillCallback)} to request
- * input suggestions.
- *
- * <P>To make sure the callback to take effect, must register before the autofill session starts.
- * If the autofill session is started, calls {@link AutofillManager#cancel()} to finish current
- * session, and then the callback will be used at the next restarted session.
- *
- * <P>To create a {@link android.service.autofill.FillResponse}, application should fetch
- * {@link AutofillId}s from its view structure. Below is an example:
- * <pre class="prettyprint">
- * AutofillId usernameId = findViewById(R.id.username).getAutofillId();
- * AutofillId passwordId = findViewById(R.id.password).getAutofillId();
- * </pre>
- * To learn more about creating a {@link android.service.autofill.FillResponse}, read
- * <a href="/guide/topics/text/autofill-services#fill">Fill out client views</a>.
- *
- * <P>To fallback to the default {@link android.service.autofill.AutofillService}, just respond
- * a null of the {@link android.service.autofill.FillResponse}. And then Autofill will do a fill
- * request with the default {@link android.service.autofill.AutofillService}. Or clear the callback
- * from {@link AutofillManager} via {@link AutofillManager#clearAutofillRequestCallback()}. If the
- * client would like to keep no suggestions for the field, respond with an empty
- * {@link android.service.autofill.FillResponse} which has no dataset.
- *
- * <P>IMPORTANT: This should not be used for displaying anything other than input suggestions, or
- * the keyboard may choose to block your app from the inline strip.
- */
-public interface AutofillRequestCallback {
-    /**
-     * Called by the Android system to decide if a screen can be autofilled by the callback.
-     *
-     * @param inlineSuggestionsRequest the {@link InlineSuggestionsRequest request} to handle if
-     *     currently inline suggestions are supported and can be displayed.
-     * @param cancellationSignal signal for observing cancellation requests. The system will use
-     *     this to notify you that the fill result is no longer needed and you should stop
-     *     handling this fill request in order to save resources.
-     * @param callback object used to notify the result of the request.
-     */
-    void onFillRequest(@Nullable InlineSuggestionsRequest inlineSuggestionsRequest,
-            @NonNull CancellationSignal cancellationSignal, @NonNull FillCallback callback);
-}
diff --git a/core/java/android/view/autofill/IAutoFillManagerClient.aidl b/core/java/android/view/autofill/IAutoFillManagerClient.aidl
index 6e13097fe319..917a974f992d 100644
--- a/core/java/android/view/autofill/IAutoFillManagerClient.aidl
+++ b/core/java/android/view/autofill/IAutoFillManagerClient.aidl
@@ -24,11 +24,9 @@ import android.content.Intent;
 import android.content.IntentSender;
 import android.graphics.Rect;
 import android.os.IBinder;
-import android.service.autofill.IFillCallback;
 import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillValue;
 import android.view.autofill.IAutofillWindowPresenter;
-import android.view.inputmethod.InlineSuggestionsRequest;
 import android.view.KeyEvent;
 
 import com.android.internal.os.IResultReceiver;
@@ -149,12 +147,6 @@ oneway interface IAutoFillManagerClient {
    void requestShowSoftInput(in AutofillId id);
 
     /**
-     * Requests to determine if a screen can be autofilled by the client app.
-     */
-    void requestFillFromClient(int id, in InlineSuggestionsRequest request,
-            in IFillCallback callback);
-
-    /**
      * Notifies autofill ids that require to show the fill dialog.
      */
     void notifyFillDialogTriggerIds(in List<AutofillId> ids);
diff --git a/core/java/android/view/inputmethod/InlineSuggestionsRequest.java b/core/java/android/view/inputmethod/InlineSuggestionsRequest.java
index 70279cc8e845..c83dfe8e68f4 100644
--- a/core/java/android/view/inputmethod/InlineSuggestionsRequest.java
+++ b/core/java/android/view/inputmethod/InlineSuggestionsRequest.java
@@ -111,22 +111,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
     private @Nullable InlinePresentationSpec mInlineTooltipPresentationSpec;
 
     /**
-     * Whether the IME supports inline suggestions from the default Autofill service that
-     * provides the input view.
-     *
-     * Note: The default value is {@code true}.
-     */
-    private boolean mServiceSupported;
-
-    /**
-     * Whether the IME supports inline suggestions from the application that provides the
-     * input view.
-     *
-     * Note: The default value is {@code true}.
-     */
-    private boolean mClientSupported;
-
-    /**
      * @hide
      * @see {@link #mHostInputToken}.
      */
@@ -220,14 +204,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         return Bundle.EMPTY;
     }
 
-    private static boolean defaultServiceSupported() {
-        return true;
-    }
-
-    private static boolean defaultClientSupported() {
-        return true;
-    }
-
     /** @hide */
     abstract static class BaseBuilder {
         abstract Builder setInlinePresentationSpecs(
@@ -240,25 +216,13 @@ public final class InlineSuggestionsRequest implements Parcelable {
         abstract Builder setHostDisplayId(int value);
     }
 
-    /** @hide */
-    public boolean isServiceSupported() {
-        return mServiceSupported;
-    }
-
-    /** @hide */
-    public boolean isClientSupported() {
-        return mClientSupported;
-    }
-
-
-
-    // Code below generated by codegen v1.0.22.
+    // Code below generated by codegen v1.0.23.
     //
     // DO NOT MODIFY!
     // CHECKSTYLE:OFF Generated code
     //
     // To regenerate run:
-    // $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/android/view/inputmethod/InlineSuggestionsRequest.java
+    // $ codegen $ANDROID_BUILD_TOP/./frameworks/base/core/java/android/view/inputmethod/InlineSuggestionsRequest.java
     //
     // To exclude the generated code from IntelliJ auto-formatting enable (one-time):
     //   Settings > Editor > Code Style > Formatter Control
@@ -274,9 +238,7 @@ public final class InlineSuggestionsRequest implements Parcelable {
             @NonNull Bundle extras,
             @Nullable IBinder hostInputToken,
             int hostDisplayId,
-            @Nullable InlinePresentationSpec inlineTooltipPresentationSpec,
-            boolean serviceSupported,
-            boolean clientSupported) {
+            @Nullable InlinePresentationSpec inlineTooltipPresentationSpec) {
         this.mMaxSuggestionCount = maxSuggestionCount;
         this.mInlinePresentationSpecs = inlinePresentationSpecs;
         com.android.internal.util.AnnotationValidations.validate(
@@ -293,8 +255,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         this.mHostInputToken = hostInputToken;
         this.mHostDisplayId = hostDisplayId;
         this.mInlineTooltipPresentationSpec = inlineTooltipPresentationSpec;
-        this.mServiceSupported = serviceSupported;
-        this.mClientSupported = clientSupported;
 
         onConstructed();
     }
@@ -378,9 +338,7 @@ public final class InlineSuggestionsRequest implements Parcelable {
     }
 
     /**
-     * The {@link InlinePresentationSpec} for the inline suggestion tooltip in the response.
-     *
-     * @see android.service.autofill.InlinePresentation#createTooltipPresentation(Slice, InlinePresentationSpec)
+     * Specifies the UI specification for the inline suggestion tooltip in the response.
      */
     @DataClass.Generated.Member
     public @Nullable InlinePresentationSpec getInlineTooltipPresentationSpec() {
@@ -401,9 +359,7 @@ public final class InlineSuggestionsRequest implements Parcelable {
                 "extras = " + mExtras + ", " +
                 "hostInputToken = " + mHostInputToken + ", " +
                 "hostDisplayId = " + mHostDisplayId + ", " +
-                "inlineTooltipPresentationSpec = " + mInlineTooltipPresentationSpec + ", " +
-                "serviceSupported = " + mServiceSupported + ", " +
-                "clientSupported = " + mClientSupported +
+                "inlineTooltipPresentationSpec = " + mInlineTooltipPresentationSpec +
         " }";
     }
 
@@ -427,9 +383,7 @@ public final class InlineSuggestionsRequest implements Parcelable {
                 && extrasEquals(that.mExtras)
                 && java.util.Objects.equals(mHostInputToken, that.mHostInputToken)
                 && mHostDisplayId == that.mHostDisplayId
-                && java.util.Objects.equals(mInlineTooltipPresentationSpec, that.mInlineTooltipPresentationSpec)
-                && mServiceSupported == that.mServiceSupported
-                && mClientSupported == that.mClientSupported;
+                && java.util.Objects.equals(mInlineTooltipPresentationSpec, that.mInlineTooltipPresentationSpec);
     }
 
     @Override
@@ -447,8 +401,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         _hash = 31 * _hash + java.util.Objects.hashCode(mHostInputToken);
         _hash = 31 * _hash + mHostDisplayId;
         _hash = 31 * _hash + java.util.Objects.hashCode(mInlineTooltipPresentationSpec);
-        _hash = 31 * _hash + Boolean.hashCode(mServiceSupported);
-        _hash = 31 * _hash + Boolean.hashCode(mClientSupported);
         return _hash;
     }
 
@@ -459,8 +411,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         // void parcelFieldName(Parcel dest, int flags) { ... }
 
         int flg = 0;
-        if (mServiceSupported) flg |= 0x100;
-        if (mClientSupported) flg |= 0x200;
         if (mHostInputToken != null) flg |= 0x20;
         if (mInlineTooltipPresentationSpec != null) flg |= 0x80;
         dest.writeInt(flg);
@@ -486,11 +436,9 @@ public final class InlineSuggestionsRequest implements Parcelable {
         // static FieldType unparcelFieldName(Parcel in) { ... }
 
         int flg = in.readInt();
-        boolean serviceSupported = (flg & 0x100) != 0;
-        boolean clientSupported = (flg & 0x200) != 0;
         int maxSuggestionCount = in.readInt();
         List<InlinePresentationSpec> inlinePresentationSpecs = new ArrayList<>();
-        in.readParcelableList(inlinePresentationSpecs, InlinePresentationSpec.class.getClassLoader(), android.widget.inline.InlinePresentationSpec.class);
+        in.readParcelableList(inlinePresentationSpecs, InlinePresentationSpec.class.getClassLoader());
         String hostPackageName = in.readString();
         LocaleList supportedLocales = (LocaleList) in.readTypedObject(LocaleList.CREATOR);
         Bundle extras = in.readBundle();
@@ -514,8 +462,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         this.mHostInputToken = hostInputToken;
         this.mHostDisplayId = hostDisplayId;
         this.mInlineTooltipPresentationSpec = inlineTooltipPresentationSpec;
-        this.mServiceSupported = serviceSupported;
-        this.mClientSupported = clientSupported;
 
         onConstructed();
     }
@@ -549,8 +495,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
         private @Nullable IBinder mHostInputToken;
         private int mHostDisplayId;
         private @Nullable InlinePresentationSpec mInlineTooltipPresentationSpec;
-        private boolean mServiceSupported;
-        private boolean mClientSupported;
 
         private long mBuilderFieldsSet = 0L;
 
@@ -683,9 +627,7 @@ public final class InlineSuggestionsRequest implements Parcelable {
         }
 
         /**
-         * The {@link InlinePresentationSpec} for the inline suggestion tooltip in the response.
-         *
-         * @see android.service.autofill.InlinePresentation#createTooltipPresentation(Slice, InlinePresentationSpec)s
+         * Specifies the UI specification for the inline suggestion tooltip in the response.
          */
         @DataClass.Generated.Member
         public @NonNull Builder setInlineTooltipPresentationSpec(@NonNull InlinePresentationSpec value) {
@@ -695,38 +637,10 @@ public final class InlineSuggestionsRequest implements Parcelable {
             return this;
         }
 
-        /**
-         * Whether the IME supports inline suggestions from the default Autofill service that
-         * provides the input view.
-         *
-         * Note: The default value is {@code true}.
-         */
-        @DataClass.Generated.Member
-        public @NonNull Builder setServiceSupported(boolean value) {
-            checkNotUsed();
-            mBuilderFieldsSet |= 0x100;
-            mServiceSupported = value;
-            return this;
-        }
-
-        /**
-         * Whether the IME supports inline suggestions from the application that provides the
-         * input view.
-         *
-         * Note: The default value is {@code true}.
-         */
-        @DataClass.Generated.Member
-        public @NonNull Builder setClientSupported(boolean value) {
-            checkNotUsed();
-            mBuilderFieldsSet |= 0x200;
-            mClientSupported = value;
-            return this;
-        }
-
         /** Builds the instance. This builder should not be touched after calling this! */
         public @NonNull InlineSuggestionsRequest build() {
             checkNotUsed();
-            mBuilderFieldsSet |= 0x400; // Mark builder used
+            mBuilderFieldsSet |= 0x100; // Mark builder used
 
             if ((mBuilderFieldsSet & 0x1) == 0) {
                 mMaxSuggestionCount = defaultMaxSuggestionCount();
@@ -749,12 +663,6 @@ public final class InlineSuggestionsRequest implements Parcelable {
             if ((mBuilderFieldsSet & 0x80) == 0) {
                 mInlineTooltipPresentationSpec = defaultInlineTooltipPresentationSpec();
             }
-            if ((mBuilderFieldsSet & 0x100) == 0) {
-                mServiceSupported = defaultServiceSupported();
-            }
-            if ((mBuilderFieldsSet & 0x200) == 0) {
-                mClientSupported = defaultClientSupported();
-            }
             InlineSuggestionsRequest o = new InlineSuggestionsRequest(
                     mMaxSuggestionCount,
                     mInlinePresentationSpecs,
@@ -763,14 +671,12 @@ public final class InlineSuggestionsRequest implements Parcelable {
                     mExtras,
                     mHostInputToken,
                     mHostDisplayId,
-                    mInlineTooltipPresentationSpec,
-                    mServiceSupported,
-                    mClientSupported);
+                    mInlineTooltipPresentationSpec);
             return o;
         }
 
         private void checkNotUsed() {
-            if ((mBuilderFieldsSet & 0x400) != 0) {
+            if ((mBuilderFieldsSet & 0x100) != 0) {
                 throw new IllegalStateException(
                         "This Builder should not be reused. Use a new Builder instance instead");
             }
@@ -778,10 +684,10 @@ public final class InlineSuggestionsRequest implements Parcelable {
     }
 
     @DataClass.Generated(
-            time = 1615798784918L,
-            codegenVersion = "1.0.22",
+            time = 1696889841006L,
+            codegenVersion = "1.0.23",
             sourceFile = "frameworks/base/core/java/android/view/inputmethod/InlineSuggestionsRequest.java",
-            inputSignatures = "public static final  int SUGGESTION_COUNT_UNLIMITED\nprivate final  int mMaxSuggestionCount\nprivate final @android.annotation.NonNull java.util.List<android.widget.inline.InlinePresentationSpec> mInlinePresentationSpecs\nprivate @android.annotation.NonNull java.lang.String mHostPackageName\nprivate @android.annotation.NonNull android.os.LocaleList mSupportedLocales\nprivate @android.annotation.NonNull android.os.Bundle mExtras\nprivate @android.annotation.Nullable android.os.IBinder mHostInputToken\nprivate  int mHostDisplayId\nprivate @android.annotation.Nullable android.widget.inline.InlinePresentationSpec mInlineTooltipPresentationSpec\nprivate  boolean mServiceSupported\nprivate  boolean mClientSupported\nprivate static final @android.compat.annotation.ChangeId @android.compat.annotation.EnabledSince long IME_AUTOFILL_DEFAULT_SUPPORTED_LOCALES_IS_EMPTY\npublic  void setHostInputToken(android.os.IBinder)\nprivate  boolean extrasEquals(android.os.Bundle)\nprivate  void parcelHostInputToken(android.os.Parcel,int)\nprivate @android.annotation.Nullable android.os.IBinder unparcelHostInputToken(android.os.Parcel)\npublic  void setHostDisplayId(int)\nprivate  void onConstructed()\npublic  void filterContentTypes()\nprivate static  int defaultMaxSuggestionCount()\nprivate static  java.lang.String defaultHostPackageName()\nprivate static  android.widget.inline.InlinePresentationSpec defaultInlineTooltipPresentationSpec()\nprivate static  android.os.LocaleList defaultSupportedLocales()\nprivate static @android.annotation.Nullable android.os.IBinder defaultHostInputToken()\nprivate static @android.annotation.Nullable int defaultHostDisplayId()\nprivate static @android.annotation.NonNull android.os.Bundle defaultExtras()\nprivate static  boolean defaultServiceSupported()\nprivate static  boolean defaultClientSupported()\npublic  boolean isServiceSupported()\npublic  boolean isClientSupported()\nclass InlineSuggestionsRequest extends java.lang.Object implements [android.os.Parcelable]\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setInlinePresentationSpecs(java.util.List<android.widget.inline.InlinePresentationSpec>)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostPackageName(java.lang.String)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostInputToken(android.os.IBinder)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostDisplayId(int)\nclass BaseBuilder extends java.lang.Object implements []\n@com.android.internal.util.DataClass(genEqualsHashCode=true, genToString=true, genBuilder=true)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setInlinePresentationSpecs(java.util.List<android.widget.inline.InlinePresentationSpec>)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostPackageName(java.lang.String)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostInputToken(android.os.IBinder)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostDisplayId(int)\nclass BaseBuilder extends java.lang.Object implements []")
+            inputSignatures = "public static final  int SUGGESTION_COUNT_UNLIMITED\nprivate final  int mMaxSuggestionCount\nprivate final @android.annotation.NonNull java.util.List<android.widget.inline.InlinePresentationSpec> mInlinePresentationSpecs\nprivate @android.annotation.NonNull java.lang.String mHostPackageName\nprivate @android.annotation.NonNull android.os.LocaleList mSupportedLocales\nprivate @android.annotation.NonNull android.os.Bundle mExtras\nprivate @android.annotation.Nullable android.os.IBinder mHostInputToken\nprivate  int mHostDisplayId\nprivate @android.annotation.Nullable android.widget.inline.InlinePresentationSpec mInlineTooltipPresentationSpec\nprivate static final @android.compat.annotation.ChangeId @android.compat.annotation.EnabledSince long IME_AUTOFILL_DEFAULT_SUPPORTED_LOCALES_IS_EMPTY\npublic  void setHostInputToken(android.os.IBinder)\nprivate  boolean extrasEquals(android.os.Bundle)\nprivate  void parcelHostInputToken(android.os.Parcel,int)\nprivate @android.annotation.Nullable android.os.IBinder unparcelHostInputToken(android.os.Parcel)\npublic  void setHostDisplayId(int)\nprivate  void onConstructed()\npublic  void filterContentTypes()\nprivate static  int defaultMaxSuggestionCount()\nprivate static  java.lang.String defaultHostPackageName()\nprivate static  android.widget.inline.InlinePresentationSpec defaultInlineTooltipPresentationSpec()\nprivate static  android.os.LocaleList defaultSupportedLocales()\nprivate static @android.annotation.Nullable android.os.IBinder defaultHostInputToken()\nprivate static @android.annotation.Nullable int defaultHostDisplayId()\nprivate static @android.annotation.NonNull android.os.Bundle defaultExtras()\nclass InlineSuggestionsRequest extends java.lang.Object implements [android.os.Parcelable]\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setInlinePresentationSpecs(java.util.List<android.widget.inline.InlinePresentationSpec>)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostPackageName(java.lang.String)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostInputToken(android.os.IBinder)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostDisplayId(int)\nclass BaseBuilder extends java.lang.Object implements []\n@com.android.internal.util.DataClass(genEqualsHashCode=true, genToString=true, genBuilder=true)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setInlinePresentationSpecs(java.util.List<android.widget.inline.InlinePresentationSpec>)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostPackageName(java.lang.String)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostInputToken(android.os.IBinder)\nabstract  android.view.inputmethod.InlineSuggestionsRequest.Builder setHostDisplayId(int)\nclass BaseBuilder extends java.lang.Object implements []")
     @Deprecated
     private void __metadata() {}
 
diff --git a/services/autofill/java/com/android/server/autofill/ClientSuggestionsSession.java b/services/autofill/java/com/android/server/autofill/ClientSuggestionsSession.java
deleted file mode 100644
index 715697d82cad..000000000000
--- a/services/autofill/java/com/android/server/autofill/ClientSuggestionsSession.java
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.autofill;
-
-import static android.service.autofill.FillRequest.INVALID_REQUEST_ID;
-
-import static com.android.server.autofill.Helper.sVerbose;
-
-import android.annotation.Nullable;
-import android.annotation.UserIdInt;
-import android.app.AppGlobals;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.graphics.drawable.Drawable;
-import android.os.Handler;
-import android.os.ICancellationSignal;
-import android.os.RemoteException;
-import android.service.autofill.Dataset;
-import android.service.autofill.FillResponse;
-import android.service.autofill.IFillCallback;
-import android.service.autofill.SaveInfo;
-import android.text.TextUtils;
-import android.text.format.DateUtils;
-import android.util.Slog;
-import android.view.autofill.AutofillId;
-import android.view.autofill.IAutoFillManagerClient;
-import android.view.inputmethod.InlineSuggestionsRequest;
-
-import com.android.internal.annotations.GuardedBy;
-import com.android.internal.infra.AndroidFuture;
-
-import java.util.List;
-import java.util.concurrent.CancellationException;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-import java.util.concurrent.atomic.AtomicReference;
-
-/**
- * Maintains a client suggestions session with the
- * {@link android.view.autofill.AutofillRequestCallback} through the {@link IAutoFillManagerClient}.
- *
- */
-final class ClientSuggestionsSession {
-
-    private static final String TAG = "ClientSuggestionsSession";
-    private static final long TIMEOUT_REMOTE_REQUEST_MILLIS = 15 * DateUtils.SECOND_IN_MILLIS;
-
-    private final int mSessionId;
-    private final IAutoFillManagerClient mClient;
-    private final Handler mHandler;
-    private final ComponentName mComponentName;
-
-    private final RemoteFillService.FillServiceCallbacks mCallbacks;
-
-    private final Object mLock = new Object();
-    @GuardedBy("mLock")
-    private AndroidFuture<FillResponse> mPendingFillRequest;
-    @GuardedBy("mLock")
-    private int mPendingFillRequestId = INVALID_REQUEST_ID;
-
-    ClientSuggestionsSession(int sessionId, IAutoFillManagerClient client, Handler handler,
-            ComponentName componentName, RemoteFillService.FillServiceCallbacks callbacks) {
-        mSessionId = sessionId;
-        mClient = client;
-        mHandler = handler;
-        mComponentName = componentName;
-        mCallbacks = callbacks;
-    }
-
-    void onFillRequest(int requestId, InlineSuggestionsRequest inlineRequest, int flags) {
-        final AtomicReference<ICancellationSignal> cancellationSink = new AtomicReference<>();
-        final AtomicReference<AndroidFuture<FillResponse>> futureRef = new AtomicReference<>();
-        final AndroidFuture<FillResponse> fillRequest = new AndroidFuture<>();
-
-        mHandler.post(() -> {
-            if (sVerbose) {
-                Slog.v(TAG, "calling onFillRequest() for id=" + requestId);
-            }
-
-            try {
-                mClient.requestFillFromClient(requestId, inlineRequest,
-                        new FillCallbackImpl(fillRequest, futureRef, cancellationSink));
-            } catch (RemoteException e) {
-                fillRequest.completeExceptionally(e);
-            }
-        });
-
-        fillRequest.orTimeout(TIMEOUT_REMOTE_REQUEST_MILLIS, TimeUnit.MILLISECONDS);
-        futureRef.set(fillRequest);
-
-        synchronized (mLock) {
-            mPendingFillRequest = fillRequest;
-            mPendingFillRequestId = requestId;
-        }
-
-        fillRequest.whenComplete((res, err) -> mHandler.post(() -> {
-            synchronized (mLock) {
-                mPendingFillRequest = null;
-                mPendingFillRequestId = INVALID_REQUEST_ID;
-            }
-            if (err == null) {
-                processAutofillId(res);
-                mCallbacks.onFillRequestSuccess(requestId, res,
-                        mComponentName.getPackageName(), flags);
-            } else {
-                Slog.e(TAG, "Error calling on  client fill request", err);
-                if (err instanceof TimeoutException) {
-                    dispatchCancellationSignal(cancellationSink.get());
-                    mCallbacks.onFillRequestTimeout(requestId);
-                } else if (err instanceof CancellationException) {
-                    dispatchCancellationSignal(cancellationSink.get());
-                } else {
-                    mCallbacks.onFillRequestFailure(requestId, err.getMessage());
-                }
-            }
-        }));
-    }
-
-    /**
-     * Gets the application info for the component.
-     */
-    @Nullable
-    static ApplicationInfo getAppInfo(ComponentName comp, @UserIdInt int userId) {
-        try {
-            ApplicationInfo si = AppGlobals.getPackageManager().getApplicationInfo(
-                    comp.getPackageName(),
-                    PackageManager.GET_META_DATA,
-                    userId);
-            if (si != null) {
-                return si;
-            }
-        } catch (RemoteException e) {
-        }
-        return null;
-    }
-
-    /**
-     * Gets the user-visible name of the application.
-     */
-    @Nullable
-    @GuardedBy("mLock")
-    static CharSequence getAppLabelLocked(Context context, ApplicationInfo appInfo) {
-        return appInfo == null ? null : appInfo.loadSafeLabel(
-                context.getPackageManager(), 0 /* do not ellipsize */,
-                TextUtils.SAFE_STRING_FLAG_FIRST_LINE | TextUtils.SAFE_STRING_FLAG_TRIM);
-    }
-
-    /**
-     * Gets the user-visible icon of the application.
-     */
-    @Nullable
-    @GuardedBy("mLock")
-    static Drawable getAppIconLocked(Context context, ApplicationInfo appInfo) {
-        return appInfo == null ? null : appInfo.loadIcon(context.getPackageManager());
-    }
-
-    int cancelCurrentRequest() {
-        synchronized (mLock) {
-            return mPendingFillRequest != null && mPendingFillRequest.cancel(false)
-                    ? mPendingFillRequestId
-                    : INVALID_REQUEST_ID;
-        }
-    }
-
-    /**
-     * The {@link AutofillId} which the client gets from its view is not contain the session id,
-     * but Autofill framework is using the {@link AutofillId} with a session id. So before using
-     * those ids in the Autofill framework, applies the current session id.
-     *
-     * @param res which response need to apply for a session id
-     */
-    private void processAutofillId(FillResponse res) {
-        if (res == null) {
-            return;
-        }
-
-        final List<Dataset> datasets = res.getDatasets();
-        if (datasets != null && !datasets.isEmpty()) {
-            for (int i = 0; i < datasets.size(); i++) {
-                final Dataset dataset = datasets.get(i);
-                if (dataset != null) {
-                    applySessionId(dataset.getFieldIds());
-                }
-            }
-        }
-
-        final SaveInfo saveInfo = res.getSaveInfo();
-        if (saveInfo != null) {
-            applySessionId(saveInfo.getOptionalIds());
-            applySessionId(saveInfo.getRequiredIds());
-            applySessionId(saveInfo.getSanitizerValues());
-            applySessionId(saveInfo.getTriggerId());
-        }
-    }
-
-    private void applySessionId(List<AutofillId> ids) {
-        if (ids == null || ids.isEmpty()) {
-            return;
-        }
-
-        for (int i = 0; i < ids.size(); i++) {
-            applySessionId(ids.get(i));
-        }
-    }
-
-    private void applySessionId(AutofillId[][] ids) {
-        if (ids == null) {
-            return;
-        }
-        for (int i = 0; i < ids.length; i++) {
-            applySessionId(ids[i]);
-        }
-    }
-
-    private void applySessionId(AutofillId[] ids) {
-        if (ids == null) {
-            return;
-        }
-        for (int i = 0; i < ids.length; i++) {
-            applySessionId(ids[i]);
-        }
-    }
-
-    private void applySessionId(AutofillId id) {
-        if (id == null) {
-            return;
-        }
-        id.setSessionId(mSessionId);
-    }
-
-    private void dispatchCancellationSignal(@Nullable ICancellationSignal signal) {
-        if (signal == null) {
-            return;
-        }
-        try {
-            signal.cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Error requesting a cancellation", e);
-        }
-    }
-
-    private class FillCallbackImpl extends IFillCallback.Stub {
-        final AndroidFuture<FillResponse> mFillRequest;
-        final AtomicReference<AndroidFuture<FillResponse>> mFutureRef;
-        final AtomicReference<ICancellationSignal> mCancellationSink;
-
-        FillCallbackImpl(AndroidFuture<FillResponse> fillRequest,
-                AtomicReference<AndroidFuture<FillResponse>> futureRef,
-                AtomicReference<ICancellationSignal> cancellationSink) {
-            mFillRequest = fillRequest;
-            mFutureRef = futureRef;
-            mCancellationSink = cancellationSink;
-        }
-
-        @Override
-        public void onCancellable(ICancellationSignal cancellation) {
-            AndroidFuture<FillResponse> future = mFutureRef.get();
-            if (future != null && future.isCancelled()) {
-                dispatchCancellationSignal(cancellation);
-            } else {
-                mCancellationSink.set(cancellation);
-            }
-        }
-
-        @Override
-        public void onSuccess(FillResponse response) {
-            mFillRequest.complete(response);
-        }
-
-        @Override
-        public void onFailure(int requestId, CharSequence message) {
-            String errorMessage = message == null ? "" : String.valueOf(message);
-            mFillRequest.completeExceptionally(
-                    new RuntimeException(errorMessage));
-        }
-    }
-}
diff --git a/services/autofill/java/com/android/server/autofill/Session.java b/services/autofill/java/com/android/server/autofill/Session.java
index 265ed4652bfb..5e4a925025b6 100644
--- a/services/autofill/java/com/android/server/autofill/Session.java
+++ b/services/autofill/java/com/android/server/autofill/Session.java
@@ -16,7 +16,6 @@
 
 package com.android.server.autofill;
 
-import static android.Manifest.permission.PROVIDE_OWN_AUTOFILL_SUGGESTIONS;
 import static android.service.autofill.AutofillFieldClassificationService.EXTRA_SCORES;
 import static android.service.autofill.AutofillService.EXTRA_FILL_RESPONSE;
 import static android.service.autofill.Dataset.PICK_REASON_NO_PCC;
@@ -44,7 +43,6 @@ import static android.view.autofill.AutofillManager.ACTION_VIEW_ENTERED;
 import static android.view.autofill.AutofillManager.ACTION_VIEW_EXITED;
 import static android.view.autofill.AutofillManager.COMMIT_REASON_SESSION_DESTROYED;
 import static android.view.autofill.AutofillManager.COMMIT_REASON_UNKNOWN;
-import static android.view.autofill.AutofillManager.FLAG_ENABLED_CLIENT_SUGGESTIONS;
 import static android.view.autofill.AutofillManager.FLAG_SMART_SUGGESTION_SYSTEM;
 import static android.view.autofill.AutofillManager.getSmartSuggestionModeToString;
 
@@ -110,8 +108,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.IntentSender;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
 import android.content.pm.ServiceInfo;
 import android.graphics.Bitmap;
 import android.graphics.Rect;
@@ -481,9 +477,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
      */
     private final PccAssistDataReceiverImpl mPccAssistReceiver = new PccAssistDataReceiverImpl();
 
-    @Nullable
-    private ClientSuggestionsSession mClientSuggestionsSession;
-
     private final ClassificationState mClassificationState = new ClassificationState();
 
     // TODO(b/216576510): Share one BroadcastReceiver between all Sessions instead of creating a
@@ -625,9 +618,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
         /** Whether the current {@link FillResponse} is expired. */
         private boolean mExpiredResponse;
 
-        /** Whether the client is using {@link android.view.autofill.AutofillRequestCallback}. */
-        private boolean mClientSuggestionsEnabled;
-
         /** Whether the fill dialog UI is disabled. */
         private boolean mFillDialogDisabled;
 
@@ -673,19 +663,13 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                 }
                 mWaitForInlineRequest = inlineSuggestionsRequest != null;
                 mPendingInlineSuggestionsRequest = inlineSuggestionsRequest;
-                maybeRequestFillFromServiceLocked();
+                maybeRequestFillLocked();
                 viewState.resetState(ViewState.STATE_PENDING_CREATE_INLINE_REQUEST);
             }
         }
 
-        void newAutofillRequestLocked(@Nullable InlineSuggestionsRequest inlineRequest) {
-            mPendingFillRequest = null;
-            mWaitForInlineRequest = inlineRequest != null;
-            mPendingInlineSuggestionsRequest = inlineRequest;
-        }
-
         @GuardedBy("mLock")
-        void maybeRequestFillFromServiceLocked() {
+        void maybeRequestFillLocked() {
             if (mPendingFillRequest == null) {
                 return;
             }
@@ -696,15 +680,13 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                     return;
                 }
 
-                if (mPendingInlineSuggestionsRequest.isServiceSupported()) {
-                    mPendingFillRequest = new FillRequest(mPendingFillRequest.getId(),
-                            mPendingFillRequest.getFillContexts(),
-                            mPendingFillRequest.getHints(),
-                            mPendingFillRequest.getClientState(),
-                            mPendingFillRequest.getFlags(),
-                            mPendingInlineSuggestionsRequest,
-                            mPendingFillRequest.getDelayedFillIntentSender());
-                }
+                mPendingFillRequest = new FillRequest(mPendingFillRequest.getId(),
+                        mPendingFillRequest.getFillContexts(),
+                        mPendingFillRequest.getHints(),
+                        mPendingFillRequest.getClientState(),
+                        mPendingFillRequest.getFlags(),
+                        mPendingInlineSuggestionsRequest,
+                        mPendingFillRequest.getDelayedFillIntentSender());
             }
             mLastFillRequest = mPendingFillRequest;
 
@@ -826,7 +808,7 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                             : mDelayedFillPendingIntent.getIntentSender());
 
                 mPendingFillRequest = request;
-                maybeRequestFillFromServiceLocked();
+                maybeRequestFillLocked();
             }
 
             if (mActivityToken != null) {
@@ -1152,39 +1134,30 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
     }
 
     /**
-     * Cancels the last request sent to the {@link #mRemoteFillService} or the
-     * {@link #mClientSuggestionsSession}.
+     * Cancels the last request sent to the {@link #mRemoteFillService}.
      */
     @GuardedBy("mLock")
     private void cancelCurrentRequestLocked() {
-        if (mRemoteFillService == null && mClientSuggestionsSession == null) {
-            wtf(null, "cancelCurrentRequestLocked() called without a remote service or a "
-                    + "client suggestions session.  mForAugmentedAutofillOnly: %s",
-                    mSessionFlags.mAugmentedAutofillOnly);
+        if (mRemoteFillService == null) {
+            wtf(null, "cancelCurrentRequestLocked() called without a remote service. "
+                    + "mForAugmentedAutofillOnly: %s", mSessionFlags.mAugmentedAutofillOnly);
             return;
         }
+        final int canceledRequest = mRemoteFillService.cancelCurrentRequest();
 
-        if (mRemoteFillService != null) {
-            final int canceledRequest = mRemoteFillService.cancelCurrentRequest();
-
-            // Remove the FillContext as there will never be a response for the service
-            if (canceledRequest != INVALID_REQUEST_ID && mContexts != null) {
-                final int numContexts = mContexts.size();
+        // Remove the FillContext as there will never be a response for the service
+        if (canceledRequest != INVALID_REQUEST_ID && mContexts != null) {
+            final int numContexts = mContexts.size();
 
-                // It is most likely the last context, hence search backwards
-                for (int i = numContexts - 1; i >= 0; i--) {
-                    if (mContexts.get(i).getRequestId() == canceledRequest) {
-                        if (sDebug) Slog.d(TAG, "cancelCurrentRequest(): id = " + canceledRequest);
-                        mContexts.remove(i);
-                        break;
-                    }
+            // It is most likely the last context, hence search backwards
+            for (int i = numContexts - 1; i >= 0; i--) {
+                if (mContexts.get(i).getRequestId() == canceledRequest) {
+                    if (sDebug) Slog.d(TAG, "cancelCurrentRequest(): id = " + canceledRequest);
+                    mContexts.remove(i);
+                    break;
                 }
             }
         }
-
-        if (mClientSuggestionsSession != null) {
-            mClientSuggestionsSession.cancelCurrentRequest();
-        }
     }
 
     private boolean isViewFocusedLocked(int flags) {
@@ -1280,30 +1253,16 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
             requestAssistStructureForPccLocked(flags | FLAG_PCC_DETECTION);
         }
 
-        // Only ask IME to create inline suggestions request when
-        // 1. Autofill provider supports it or client enabled client suggestions.
-        // 2. The render service is available.
-        // 3. The view is focused. (The view may not be focused if the autofill is triggered
-        //    manually.)
+        // Only ask IME to create inline suggestions request if Autofill provider supports it and
+        // the render service is available except the autofill is triggered manually and the view
+        // is also not focused.
         final RemoteInlineSuggestionRenderService remoteRenderService =
                 mService.getRemoteInlineSuggestionRenderServiceLocked();
-        if ((mSessionFlags.mInlineSupportedByService || mSessionFlags.mClientSuggestionsEnabled)
-                && remoteRenderService != null
-                && (isViewFocusedLocked(flags) || (isRequestSupportFillDialog(flags)))) {
-            final Consumer<InlineSuggestionsRequest> inlineSuggestionsRequestConsumer;
-            if (mSessionFlags.mClientSuggestionsEnabled) {
-                final int finalRequestId = requestId;
-                inlineSuggestionsRequestConsumer = (inlineSuggestionsRequest) -> {
-                    // Using client suggestions
-                    synchronized (mLock) {
-                        onClientFillRequestLocked(finalRequestId, inlineSuggestionsRequest);
-                    }
-                    viewState.resetState(ViewState.STATE_PENDING_CREATE_INLINE_REQUEST);
-                };
-            } else {
-                inlineSuggestionsRequestConsumer = mAssistReceiver.newAutofillRequestLocked(
-                        viewState, /* isInlineRequest= */ true);
-            }
+        if (mSessionFlags.mInlineSupportedByService && remoteRenderService != null
+            && (isViewFocusedLocked(flags) || isRequestSupportFillDialog(flags))) {
+            Consumer<InlineSuggestionsRequest> inlineSuggestionsRequestConsumer =
+                mAssistReceiver.newAutofillRequestLocked(viewState,
+                    /* isInlineRequest= */ true);
             if (inlineSuggestionsRequestConsumer != null) {
                 final int requestIdCopy = requestId;
                 final AutofillId focusedId = mCurrentViewId;
@@ -1323,18 +1282,10 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                         inlineSuggestionRendorInfoCallback);
                 viewState.setState(ViewState.STATE_PENDING_CREATE_INLINE_REQUEST);
             }
-        } else if (mSessionFlags.mClientSuggestionsEnabled) {
-            // Request client suggestions for the dropdown mode
-            onClientFillRequestLocked(requestId, null);
         } else {
             mAssistReceiver.newAutofillRequestLocked(viewState, /* isInlineRequest= */ false);
         }
 
-        if (mSessionFlags.mClientSuggestionsEnabled) {
-            // Using client suggestions, unnecessary request AssistStructure
-            return;
-        }
-
         // Now request the assist structure data.
         requestAssistStructureLocked(requestId, flags);
     }
@@ -1443,11 +1394,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
             mSessionFlags = new SessionFlags();
             mSessionFlags.mAugmentedAutofillOnly = forAugmentedAutofillOnly;
             mSessionFlags.mInlineSupportedByService = mService.isInlineSuggestionsEnabledLocked();
-            if (mContext.checkCallingPermission(PROVIDE_OWN_AUTOFILL_SUGGESTIONS)
-                    == PackageManager.PERMISSION_GRANTED) {
-                mSessionFlags.mClientSuggestionsEnabled =
-                        (mFlags & FLAG_ENABLED_CLIENT_SUGGESTIONS) != 0;
-            }
             setClientLocked(client);
         }
 
@@ -1599,15 +1545,14 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                 if (requestLog != null) {
                     requestLog.addTaggedData(MetricsEvent.FIELD_AUTOFILL_NUM_DATASETS, -1);
                 }
-                processNullResponseOrFallbackLocked(requestId, requestFlags);
+                processNullResponseLocked(requestId, requestFlags);
                 return;
             }
 
             // TODO: Check if this is required. We can still present datasets to the user even if
             //  traditional field classification is disabled.
             fieldClassificationIds = response.getFieldClassificationIds();
-            if (!mSessionFlags.mClientSuggestionsEnabled && fieldClassificationIds != null
-                    && !mService.isFieldClassificationEnabledLocked()) {
+            if (fieldClassificationIds != null && !mService.isFieldClassificationEnabledLocked()) {
                 Slog.w(TAG, "Ignoring " + response + " because field detection is disabled");
                 processNullResponseLocked(requestId, requestFlags);
                 return;
@@ -1741,9 +1686,7 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
                         || (ArrayUtils.isEmpty(saveInfo.getOptionalIds())
                             && ArrayUtils.isEmpty(saveInfo.getRequiredIds())
                             && ((saveInfo.getFlags() & SaveInfo.FLAG_DELAY_SAVE) == 0)))
-                    && (ArrayUtils.isEmpty(response.getFieldClassificationIds())
-                        || (!mSessionFlags.mClientSuggestionsEnabled
-                        && !mService.isFieldClassificationEnabledLocked())));
+                    && (ArrayUtils.isEmpty(response.getFieldClassificationIds())));
         }
     }
 
@@ -2190,40 +2133,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
         fieldFilters.add(dataset.getFilter(index));
     }
 
-    @GuardedBy("mLock")
-    private void processNullResponseOrFallbackLocked(int requestId, int flags) {
-        if (!mSessionFlags.mClientSuggestionsEnabled) {
-            processNullResponseLocked(requestId, flags);
-            return;
-        }
-
-        // fallback to the default platform password manager
-        mSessionFlags.mClientSuggestionsEnabled = false;
-        mLastFillDialogTriggerIds = null;
-        // Log the existing FillResponse event.
-        mFillResponseEventLogger.logAndEndEvent();
-
-        final InlineSuggestionsRequest inlineRequest =
-                (mLastInlineSuggestionsRequest != null
-                        && mLastInlineSuggestionsRequest.first == requestId)
-                        ? mLastInlineSuggestionsRequest.second : null;
-
-        // Start a new FillRequest logger for client suggestion fallback.
-        mFillRequestEventLogger.startLogForNewRequest();
-        mRequestCount++;
-        mFillRequestEventLogger.maybeSetAppPackageUid(uid);
-        mFillRequestEventLogger.maybeSetFlags(
-            flags & ~FLAG_ENABLED_CLIENT_SUGGESTIONS);
-        mFillRequestEventLogger.maybeSetRequestTriggerReason(
-            TRIGGER_REASON_NORMAL_TRIGGER);
-        mFillRequestEventLogger.maybeSetIsClientSuggestionFallback(true);
-
-        mAssistReceiver.newAutofillRequestLocked(inlineRequest);
-        requestAssistStructureLocked(requestId,
-                flags & ~FLAG_ENABLED_CLIENT_SUGGESTIONS);
-        return;
-    }
-
     // FillServiceCallbacks
     @Override
     @SuppressWarnings("GuardedBy")
@@ -4520,22 +4429,13 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
             filterText = value.getTextValue().toString();
         }
 
-        final CharSequence targetLabel;
-        final Drawable targetIcon;
-        synchronized (mLock) {
-            if (mSessionFlags.mClientSuggestionsEnabled) {
-                final ApplicationInfo appInfo = ClientSuggestionsSession.getAppInfo(mComponentName,
-                        mService.getUserId());
-                targetLabel = ClientSuggestionsSession.getAppLabelLocked(
-                        mService.getMaster().getContext(), appInfo);
-                targetIcon = ClientSuggestionsSession.getAppIconLocked(
-                        mService.getMaster().getContext(), appInfo);
-            } else {
-                targetLabel = mService.getServiceLabelLocked();
-                targetIcon = mService.getServiceIconLocked();
-            }
+        final CharSequence serviceLabel;
+        final Drawable serviceIcon;
+        synchronized (this.mService.mLock) {
+            serviceLabel = mService.getServiceLabelLocked();
+            serviceIcon = mService.getServiceIconLocked();
         }
-        if (targetLabel == null || targetIcon == null) {
+        if (serviceLabel == null || serviceIcon == null) {
             wtf(null, "onFillReady(): no service label or icon");
             return;
         }
@@ -4596,7 +4496,7 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
 
         getUiForShowing().showFillUi(filledId, response, filterText,
                 mService.getServicePackageName(), mComponentName,
-                targetLabel, targetIcon, this, mContext, id, mCompatMode,
+                serviceLabel, serviceIcon, this, mContext, id, mCompatMode,
                 mService.getMaster().getMaxInputLengthForAutofill());
 
         synchronized (mLock) {
@@ -4799,17 +4699,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
             return false;
         }
 
-        final InlineSuggestionsRequest request = inlineSuggestionsRequest.get();
-        if (mSessionFlags.mClientSuggestionsEnabled && !request.isClientSupported()
-                || !mSessionFlags.mClientSuggestionsEnabled && !request.isServiceSupported()) {
-            if (sDebug) {
-                Slog.d(TAG, "Inline suggestions not supported for "
-                        + (mSessionFlags.mClientSuggestionsEnabled ? "client" : "service")
-                        + ". Falling back to dropdown.");
-            }
-            return false;
-        }
-
         final RemoteInlineSuggestionRenderService remoteRenderService =
                 mService.getRemoteInlineSuggestionRenderServiceLocked();
         if (remoteRenderService == null) {
@@ -4824,7 +4713,7 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
         }
 
         final InlineFillUi.InlineFillUiInfo inlineFillUiInfo =
-                new InlineFillUi.InlineFillUiInfo(request, focusedId,
+                new InlineFillUi.InlineFillUiInfo(inlineSuggestionsRequest.get(), focusedId,
                         filterText, remoteRenderService, userId, id);
         InlineFillUi inlineFillUi = InlineFillUi.forAutofill(inlineFillUiInfo, response,
                 new InlineFillUi.InlineSuggestionUiCallback() {
@@ -5641,26 +5530,6 @@ final class Session implements RemoteFillService.FillServiceCallbacks, ViewState
         }
     }
 
-    @GuardedBy("mLock")
-    private void onClientFillRequestLocked(int requestId,
-            InlineSuggestionsRequest inlineSuggestionsRequest) {
-        if (mClientSuggestionsSession == null) {
-            mClientSuggestionsSession = new ClientSuggestionsSession(id, mClient, mHandler,
-                    mComponentName, this);
-        }
-
-        if (mContexts == null) {
-            mContexts = new ArrayList<>(1);
-        }
-        mContexts.add(new FillContext(requestId, new AssistStructure(), mCurrentViewId));
-
-        if (inlineSuggestionsRequest != null && !inlineSuggestionsRequest.isClientSupported()) {
-            inlineSuggestionsRequest = null;
-        }
-
-        mClientSuggestionsSession.onFillRequest(requestId, inlineSuggestionsRequest, mFlags);
-    }
-
     /**
      * The result of checking whether to show the save dialog, when session can be saved.
      *