Improve the notifications sent from AXTree updates.

content/browser/accessibility/browser_accessibility_manager_android.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/android/content_view_core_impl.h"
@@ skipping 105 matching lines @@
       int32 granularity, int cursor_index,
       BrowserAccessibilityAndroid* node, int32* start_index, int32* end_index);
 
   // Set accessibility focus. This sends a message to the renderer to
   // asynchronously load inline text boxes for this node only, enabling more
   // accurate movement by granularities on this node.
   void SetAccessibilityFocus(JNIEnv* env, jobject obj, jint id);
 
  protected:
   // AXTreeDelegate overrides.
-  virtual void OnRootChanged(ui::AXNode* new_root) override;
+  void OnAtomicUpdateFinished(
+      bool root_changed,
+      const std::vector<ui::AXTreeDelegate::Change>& changes) override;
 
   virtual bool UseRootScrollOffsetsWhenComputingBounds() override;
 
  private:
   // This gives BrowserAccessibilityManager::Create access to the class
   // constructor.
   friend class BrowserAccessibilityManager;
 
   // A weak reference to the Java BrowserAccessibilityManager object.
   // This avoids adding another reference to BrowserAccessibilityManager and
   // preventing garbage collection.
   // Premature garbage collection is prevented by the long-lived reference in
   // ContentViewCore.
   JavaObjectWeakGlobalRef java_ref_;
 
   // Handle a hover event from the renderer process.
   void HandleHoverEvent(BrowserAccessibility* node);
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerAndroid);
 };
 
 bool RegisterBrowserAccessibilityManager(JNIEnv* env);
 
 }
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_