Revert "Allow MessageFilters to restrict listening to specific message classes"

content/browser/frame_host/render_frame_message_filter.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_frame_message_filter.h"
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/common/frame_messages.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 18 matching lines @@
                                           parent_frame_id, frame_id,
                                           frame_name);
   }
 }
 
 }  // namespace
 
 RenderFrameMessageFilter::RenderFrameMessageFilter(
     int render_process_id,
     RenderWidgetHelper* render_widget_helper)
-    : BrowserMessageFilter(FrameMsgStart),
-      render_process_id_(render_process_id),
+    : render_process_id_(render_process_id),
       render_widget_helper_(render_widget_helper) {
 }
 
 RenderFrameMessageFilter::~RenderFrameMessageFilter() {
 }
 
 bool RenderFrameMessageFilter::OnMessageReceived(const IPC::Message& message,
                                                  bool* message_was_ok) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameMessageFilter, message, *message_was_ok)
@@ skipping 12 matching lines @@
     int* new_render_frame_id) {
   *new_render_frame_id = render_widget_helper_->GetNextRoutingID();
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&CreateChildFrameOnUI, render_process_id_,
                  parent_render_frame_id, parent_frame_id, frame_id, frame_name,
                  *new_render_frame_id));
 }
 
 }  // namespace content