Rewrite renderer accessibility to not use WebAccessibilityCache.

content/browser/accessibility/browser_accessibility_manager.h

 // Copyright (c) 2011 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_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 108 matching lines @@
   BrowserAccessibility* GetFocus(BrowserAccessibility* root);
 
  protected:
   BrowserAccessibilityManager(
       gfx::NativeView parent_view,
       const WebAccessibility& src,
       BrowserAccessibilityDelegate* delegate,
       BrowserAccessibilityFactory* factory);
 
  private:
-  // Type is a ViewHostMsg_AccessibilityNotification_Type::int.
-  // We pass it as int so that we don't include the render message declaration
-  // header here.
-  void OnSimpleAccessibilityNotification(
-      const WebAccessibility& acc_obj,
-      int type,
-      bool include_children);
-
-  void OnAccessibilityObjectFocusChange(
-      const WebAccessibility& acc_obj);
-  void OnAccessibilityObjectLoadComplete(
-      const WebAccessibility& acc_obj);
-
   // Update an accessibility node with an updated WebAccessibility node
   // received from the renderer process. When |include_children| is true
   // the node's children will also be updated, otherwise only the node
-  // itself is updated. Returns the updated node or NULL if no node was
-  // updated.
-  BrowserAccessibility* UpdateNode(
-      const WebAccessibility& src,
-      bool include_children);
+  // itself is updated.
+  void UpdateNode(const WebAccessibility& src, bool include_children);
 
   // Recursively build a tree of BrowserAccessibility objects from
   // the WebAccessibility tree received from the renderer process.
   BrowserAccessibility* CreateAccessibilityTree(
       BrowserAccessibility* parent,
       const WebAccessibility& src,
       int index_in_parent,
       bool send_show_events);
 
  protected:
@@ skipping 18 matching lines @@
   // we use internally here.
   base::hash_map<int32, int32> renderer_id_to_child_id_map_;
 
   // A mapping from child IDs to BrowserAccessibility objects.
   base::hash_map<int32, BrowserAccessibility*> child_id_map_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManager);
 };
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_