Plumb View.getAccessibilityNodeProvider though WebViewProvider.

This is needed to make use of the new Accessibility implementation
in the Chromium WebView. nos for WebView Classic.

Change-Id: I8e26035d15af494e4caa50b4c6c7cb4ac8efeb9e

3 files changed, 17 insertions, 0 deletions

diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 49987428ceef..0149f033fc42 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -41,6 +41,7 @@ import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.accessibility.AccessibilityNodeProvider;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.widget.AbsoluteLayout;
@@ -2051,6 +2052,13 @@ public class WebView extends AbsoluteLayout
     }
     */
 
+    @Override
+    public AccessibilityNodeProvider getAccessibilityNodeProvider() {
+        AccessibilityNodeProvider provider =
+                mProvider.getViewDelegate().getAccessibilityNodeProvider();
+        return provider == null ? super.getAccessibilityNodeProvider() : provider;
+    }
+
     @Deprecated
     @Override
     public boolean shouldDelayChildPressedState() {
diff --git a/core/java/android/webkit/WebViewClassic.java b/core/java/android/webkit/WebViewClassic.java
index 3afab0982078..5a9e6c97813b 100644
--- a/core/java/android/webkit/WebViewClassic.java
+++ b/core/java/android/webkit/WebViewClassic.java
@@ -90,6 +90,7 @@ import android.view.ViewRootImpl;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.accessibility.AccessibilityNodeProvider;
 import android.view.inputmethod.BaseInputConnection;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
@@ -1769,6 +1770,11 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
     }
 
     @Override
+    public AccessibilityNodeProvider getAccessibilityNodeProvider() {
+      return null;
+    }
+
+    @Override
     public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
         if (!mWebView.isEnabled()) {
             // Only default actions are supported while disabled.
diff --git a/core/java/android/webkit/WebViewProvider.java b/core/java/android/webkit/WebViewProvider.java
index fa17ab9626d6..41d63338d2f8 100644
--- a/core/java/android/webkit/WebViewProvider.java
+++ b/core/java/android/webkit/WebViewProvider.java
@@ -32,6 +32,7 @@ import android.view.View;
 import android.view.ViewGroup.LayoutParams;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.accessibility.AccessibilityNodeProvider;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.webkit.WebView.HitTestResult;
@@ -279,6 +280,8 @@ public interface WebViewProvider {
     interface ViewDelegate {
         public boolean shouldDelayChildPressedState();
 
+        public AccessibilityNodeProvider getAccessibilityNodeProvider();
+
         public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info);
 
         public void onInitializeAccessibilityEvent(AccessibilityEvent event);