Clear RenderThread of any Chrome specific code, and move a bunch of stuff out of RenderView.

content/renderer/render_process_observer.h

Index: content/renderer/render_process_observer.h
===================================================================
--- content/renderer/render_process_observer.h	(revision 81801)
+++ content/renderer/render_process_observer.h	(working copy)
@@ -13,11 +13,14 @@
 
 // Base class for objects that want to filter control IPC messages and get
 // notified of events.
-class RenderProcessObserver {
+class RenderProcessObserver : public IPC::Message::Sender {
  public:
   RenderProcessObserver();
   virtual ~RenderProcessObserver();
 
+  // IPC::Message::Sender
+  virtual bool Send(IPC::Message* message);
+
   // Allows filtering of control messages.
   virtual bool OnControlMessageReceived(const IPC::Message& message);