Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/frame_host/render_frame_host_delegate.h

Index: content/browser/frame_host/render_frame_host_delegate.h
diff --git a/content/browser/frame_host/render_frame_host_delegate.h b/content/browser/frame_host/render_frame_host_delegate.h
index 6150d46329d7ebe97afaeeb0d9d15a1748aed2c1..4d53936c113471097272f1a2bf54cc42ce78bd80 100644
--- a/content/browser/frame_host/render_frame_host_delegate.h
+++ b/content/browser/frame_host/render_frame_host_delegate.h
@@ -5,18 +5,11 @@
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
-#include <vector>
-
 #include "base/basictypes.h"
 #include "base/i18n/rtl.h"
 #include "content/common/content_export.h"
-#include "content/common/frame_message_enums.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/media_stream_request.h"
-
-#if defined(OS_WIN)
-#include "ui/gfx/native_widget_types.h"
-#endif
 
 class GURL;
 
@@ -27,7 +20,6 @@
 namespace content {
 class RenderFrameHost;
 class WebContents;
-struct AXEventNotificationDetails;
 struct ContextMenuParams;
 
 // An interface implemented by an object interested in knowing about the state
@@ -127,18 +119,6 @@
       const MediaStreamRequest& request,
       const MediaResponseCallback& callback);
 
-  // Get the accessibility mode for the WebContents that owns this frame.
-  virtual AccessibilityMode GetAccessibilityMode() const;
-
-  // Invoked when an accessibility event is received from the renderer.
-  virtual void AccessibilityEventReceived(
-      const std::vector<AXEventNotificationDetails>& details) {}
-
-#if defined(OS_WIN)
-  // Returns the frame's parent's NativeViewAccessible.
-  virtual gfx::NativeViewAccessible GetParentNativeViewAccessible();
-#endif
-
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };