Input event filtering and compositor thread setup.

content/renderer/render_thread.h

Index: content/renderer/render_thread.h
===================================================================
--- content/renderer/render_thread.h	(revision 104238)
+++ content/renderer/render_thread.h	(working copy)
@@ -25,6 +25,7 @@
 class AppCacheDispatcher;
 class AudioInputMessageFilter;
 class AudioMessageFilter;
+class CompositorThread;
 class DBMessageFilter;
 class DevToolsAgentFilter;
 class FilePath;
@@ -147,6 +148,10 @@
   void DoNotSuspendWebKitSharedTimer();
   void DoNotNotifyWebKitOfModalLoop();
 
+  CompositorThread* compositor_thread() const {
+    return compositor_thread_.get();
+  }
+
   AppCacheDispatcher* appcache_dispatcher() const {
     return appcache_dispatcher_.get();
   }
@@ -279,6 +284,8 @@
   // Map of registered v8 extensions. The key is the extension name.
   std::set<std::string> v8_extensions_;
 
+  scoped_ptr<CompositorThread> compositor_thread_;
+
   ObserverList<content::RenderProcessObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderThread);