Make BrowserMessageFilter not derive from IPC::ChannelProxy::MessageFilter. This allows us to hide …

content/public/browser/render_process_host.h

Index: content/public/browser/render_process_host.h
===================================================================
--- content/public/browser/render_process_host.h	(revision 225900)
+++ content/public/browser/render_process_host.h	(working copy)
@@ -18,17 +18,15 @@
 class GURL;
 struct ViewMsg_SwapOut_Params;
 
-namespace content {
-class BrowserContext;
-class RenderWidgetHost;
-class StoragePartition;
-}
-
 namespace base {
 class TimeDelta;
 }
 
 namespace content {
+class BrowserContext;
+class BrowserMessageFilter;
+class RenderWidgetHost;
+class StoragePartition;
 
 typedef base::Thread* (*RendererMainThreadFactoryFunction)(
     const std::string& id);
@@ -160,6 +158,9 @@
   // Returns the renderer channel.
   virtual IPC::ChannelProxy* GetChannel() = 0;
 
+  // Adds a message filter to the IPC channel.
+  virtual void AddFilter(BrowserMessageFilter* filter) = 0;
+
   // Try to shutdown the associated render process as fast as possible
   virtual bool FastShutdownForPageCount(size_t count) = 0;