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

content/browser/plugin_process_host.cc

Index: content/browser/plugin_process_host.cc
===================================================================
--- content/browser/plugin_process_host.cc	(revision 225900)
+++ content/browser/plugin_process_host.cc	(working copy)
@@ -265,7 +265,7 @@
   ResourceMessageFilter* resource_message_filter = new ResourceMessageFilter(
       process_->GetData().id, PROCESS_TYPE_PLUGIN, NULL, NULL, NULL,
       get_contexts_callback);
-  process_->GetHost()->AddFilter(resource_message_filter);
+  process_->AddFilter(resource_message_filter);
   return true;
 }
 
@@ -275,10 +275,6 @@
   process_->ForceShutdown();
 }
 
-void PluginProcessHost::AddFilter(IPC::ChannelProxy::MessageFilter* filter) {
-  process_->GetHost()->AddFilter(filter);
-}
-
 bool PluginProcessHost::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PluginProcessHost, msg)