Move handling of DraggableRegionsChanged notification from "view" to "frame".

content/public/renderer/render_view_observer.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_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 
 class GURL;
 
 namespace blink {
-class WebFrame;
 class WebGestureEvent;
 class WebLocalFrame;
 struct WebURLError;
 }
 
 namespace content {
 
 class RenderView;
 class RenderViewImpl;
 
 // Base class for objects that want to filter incoming IPCs, and also get
 // notified of changes to the frame.
 class CONTENT_EXPORT RenderViewObserver : public IPC::Listener,
                                           public IPC::Sender {
  public:
   // A subclass can use this to delete itself. If it does not, the subclass must
   // always null-check each call to render_view() becase the RenderView can
   // go away at any time.
   virtual void OnDestruct() = 0;
 
   // These match the WebKit API notifications
   virtual void DidStartLoading() {}
   virtual void DidStopLoading() {}
   virtual void DidFailProvisionalLoad(blink::WebLocalFrame* frame,
                                       const blink::WebURLError& error) {}
   virtual void DidCommitProvisionalLoad(blink::WebLocalFrame* frame,
                                         bool is_new_navigation) {}
   virtual void DidClearWindowObject(blink::WebLocalFrame* frame) {}
-  virtual void DraggableRegionsChanged(blink::WebFrame* frame) {}
   virtual void DidCommitCompositorFrame() {}
   virtual void DidUpdateLayout() {}
 
   // These match the RenderView methods.
   virtual void DidHandleGestureEvent(const blink::WebGestureEvent& event) {}
 
   // These match incoming IPCs.
   virtual void Navigate(const GURL& url) {}
 
   virtual void OnZoomLevelChanged() {}
@@ skipping 27 matching lines @@
   RenderViewImpl* render_view_;
   // The routing ID of the associated RenderView.
   int routing_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_VIEW_OBSERVER_H_