Deprecated userspace reboot related APIs

The feature was initially introduced to support Mainline updates, but
was never actually used by Mainline (instead Mainline uses
reboot-on-resume feature).

Bug: 292469129
Test: m
Change-Id: Iae60ffcfb3e64d35e0e1444b568d69895b27ff8f

3 files changed, 8 insertions, 5 deletions

diff --git a/core/api/current.txt b/core/api/current.txt
index abf3a2f0ddf8..988fcf334e09 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -31970,7 +31970,7 @@ package android.os {
     method public boolean isInteractive();
     method public boolean isLowPowerStandbyEnabled();
     method public boolean isPowerSaveMode();
-    method public boolean isRebootingUserspaceSupported();
+    method @Deprecated public boolean isRebootingUserspaceSupported();
     method @Deprecated public boolean isScreenOn();
     method public boolean isSustainedPerformanceModeSupported();
     method public boolean isWakeLockLevelSupported(int);
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 821944f406cd..c893b5432269 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -9627,7 +9627,7 @@ package android.os {
     method @RequiresPermission(anyOf={android.Manifest.permission.DEVICE_POWER, android.Manifest.permission.USER_ACTIVITY}) public void userActivity(long, int, int);
     field public static final int POWER_SAVE_MODE_TRIGGER_DYNAMIC = 1; // 0x1
     field public static final int POWER_SAVE_MODE_TRIGGER_PERCENTAGE = 0; // 0x0
-    field public static final String REBOOT_USERSPACE = "userspace";
+    field @Deprecated public static final String REBOOT_USERSPACE = "userspace";
     field public static final int SOUND_TRIGGER_MODE_ALL_DISABLED = 2; // 0x2
     field public static final int SOUND_TRIGGER_MODE_ALL_ENABLED = 0; // 0x0
     field public static final int SOUND_TRIGGER_MODE_CRITICAL_ONLY = 1; // 0x1
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index aa733b5c6d49..bd040b2e9633 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -33,7 +33,6 @@ import android.app.PropertyInvalidatedCache;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.service.dreams.Sandman;
-import android.sysprop.InitProperties;
 import android.util.ArrayMap;
 import android.util.Log;
 import android.util.proto.ProtoOutputStream;
@@ -873,6 +872,8 @@ public final class PowerManager {
 
     /**
      * The 'reason' value used for rebooting userspace.
+     *
+     * @deprecated userspace reboot is not supported
      * @hide
      */
     @SystemApi
@@ -1805,16 +1806,18 @@ public final class PowerManager {
      * <p>This method exists solely for the sake of re-using same logic between {@code PowerManager}
      * and {@code PowerManagerService}.
      *
+     * @deprecated TODO(b/292469129): remove this method.
      * @hide
      */
     public static boolean isRebootingUserspaceSupportedImpl() {
-        return InitProperties.is_userspace_reboot_supported().orElse(false);
+        return false;
     }
 
     /**
      * Returns {@code true} if this device supports rebooting userspace.
+     *
+     * @deprecated userspace reboot is deprecated, this method always returns {@code false}.
      */
-    // TODO(b/138605180): add link to documentation once it's ready.
     public boolean isRebootingUserspaceSupported() {
         return isRebootingUserspaceSupportedImpl();
     }