Decouple IPC::MessageFilter from IPC::Channel

content/renderer/p2p/socket_dispatcher.h

Index: content/renderer/p2p/socket_dispatcher.h
diff --git a/content/renderer/p2p/socket_dispatcher.h b/content/renderer/p2p/socket_dispatcher.h
index 5bfd264d213d1aaa64c67f3ea4225c9700f6aec7..4743b3452e2e468939d3c1a7e18fab0df3bc7c9d 100644
--- a/content/renderer/p2p/socket_dispatcher.h
+++ b/content/renderer/p2p/socket_dispatcher.h
@@ -74,9 +74,9 @@ class CONTENT_EXPORT P2PSocketDispatcher : public IPC::MessageFilter {
 
   // IPC::MessageFilter override. Called on IO thread.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-  virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE;
+  virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE;
   virtual void OnFilterRemoved() OVERRIDE;
-  virtual void OnChannelClosing() OVERRIDE;
+  virtual void OnSenderClosing() OVERRIDE;
 
   // Returns the IO message loop.
   base::MessageLoopProxy* message_loop();
@@ -113,7 +113,7 @@ class CONTENT_EXPORT P2PSocketDispatcher : public IPC::MessageFilter {
   scoped_refptr<ObserverListThreadSafe<NetworkListObserver> >
       network_list_observers_;
 
-  IPC::Channel* channel_;
+  IPC::Sender* sender_;
 
   DISALLOW_COPY_AND_ASSIGN(P2PSocketDispatcher);
 };