Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/renderer_host/render_widget_host_view_aura.h

 // Copyright (c) 2012 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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 200 matching lines @@
   virtual void GestureEventAck(const blink::WebGestureEvent& event,
                                InputEventAckState ack_result) OVERRIDE;
   virtual void ProcessAckedTouchEvent(
       const TouchEventWithLatencyInfo& touch,
       InputEventAckState ack_result) OVERRIDE;
   virtual scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget()
       OVERRIDE;
   virtual InputEventAckState FilterInputEvent(
       const blink::WebInputEvent& input_event) OVERRIDE;
   virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
-  virtual BrowserAccessibilityManager* CreateBrowserAccessibilityManager(
-      BrowserAccessibilityDelegate* delegate) OVERRIDE;
+  virtual void CreateBrowserAccessibilityManagerIfNeeded() OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
   virtual void OnSwapCompositorFrame(
       uint32 output_surface_id,
       scoped_ptr<cc::CompositorFrame> frame) OVERRIDE;
 
 #if defined(OS_WIN)
   virtual void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) OVERRIDE;
   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const OVERRIDE;
@@ skipping 361 matching lines @@
   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_