Add WasShown/WasHidden to RenderFrameObserver.

content/browser/frame_host/render_frame_host_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_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 21 matching lines @@
 namespace content {
 
 class CrossProcessFrameConnector;
 class CrossSiteTransferringRequest;
 class FrameTree;
 class FrameTreeNode;
 class RenderFrameHostDelegate;
 class RenderFrameProxyHost;
 class RenderProcessHost;
 class RenderViewHostImpl;
+class RenderWidgetHostImpl;
 struct ContextMenuParams;
 struct GlobalRequestID;
 struct Referrer;
 struct ShowDesktopNotificationHostMsgParams;
 
 class CONTENT_EXPORT RenderFrameHostImpl : public RenderFrameHost {
  public:
   static RenderFrameHostImpl* FromID(int process_id, int routing_id);
 
   virtual ~RenderFrameHostImpl();
@@ skipping 21 matching lines @@
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
   void Init();
   int routing_id() const { return routing_id_; }
   void OnCreateChildFrame(int new_routing_id,
                           const std::string& frame_name);
 
   RenderViewHostImpl* render_view_host() { return render_view_host_; }
   RenderFrameHostDelegate* delegate() { return delegate_; }
   FrameTreeNode* frame_tree_node() { return frame_tree_node_; }
+  // TODO(nasko): The RenderWidgetHost will be owned by RenderFrameHost in
+  // the future, so update this accessor to return the right pointer.
+  RenderWidgetHostImpl* GetRenderWidgetHost();
 
   // This function is called when this is a swapped out RenderFrameHost that
   // lives in the same process as the parent frame. The
   // |cross_process_frame_connector| allows the non-swapped-out
   // RenderFrameHost for a frame to communicate with the parent process
   // so that it may composite drawing data.
   //
   // Ownership is not transfered.
   void set_cross_process_frame_connector(
       CrossProcessFrameConnector* cross_process_frame_connector) {
@@ skipping 194 matching lines @@
   base::TimeTicks send_before_unload_start_time_;
 
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_