Implement NavigationThrottle::BLOCK_REQUEST_AND_COLLAPSE.

content/renderer/render_frame_impl.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_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 813 matching lines @@
   void OnNavigate(const CommonNavigationParams& common_params,
                   const StartNavigationParams& start_params,
                   const RequestNavigationParams& request_params);
   void OnBeforeUnload(bool is_reload);
   void OnSwapIn();
   void OnSwapOut(int proxy_routing_id,
                  bool is_loading,
                  const FrameReplicationState& replicated_frame_state);
   void OnDeleteFrame();
   void OnStop();
+  void OnCollapse(bool collapse);
   void OnShowContextMenu(const gfx::Point& location);
   void OnContextMenuClosed(const CustomContextMenuContext& custom_context);
   void OnCustomContextMenuAction(const CustomContextMenuContext& custom_context,
                                  unsigned action);
   void OnUndo();
   void OnRedo();
   void OnCut();
   void OnCopy();
   void OnPaste();
   void OnPasteAndMatchStyle();
@@ skipping 552 matching lines @@
   int enabled_bindings_ = 0;
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_