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

content/browser/loader/resource_message_filter.cc

 // Copyright (c) 2012 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/loader/resource_message_filter.h"
 
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
-#include "content/common/resource_messages.h"
 #include "content/public/browser/resource_context.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 
 namespace content {
 
 ResourceMessageFilter::ResourceMessageFilter(
     int child_id,
     int process_type,
     ChromeAppCacheService* appcache_service,
     ChromeBlobStorageContext* blob_storage_context,
     fileapi::FileSystemContext* file_system_context,
     const GetContextsCallback& get_contexts_callback)
-    : BrowserMessageFilter(ResourceMsgStart),
-      child_id_(child_id),
+    : child_id_(child_id),
       process_type_(process_type),
       appcache_service_(appcache_service),
       blob_storage_context_(blob_storage_context),
       file_system_context_(file_system_context),
       get_contexts_callback_(get_contexts_callback),
       weak_ptr_factory_(this) {
 }
 
 ResourceMessageFilter::~ResourceMessageFilter() {
 }
@@ skipping 15 matching lines @@
     ResourceContext** resource_context,
     net::URLRequestContext** request_context) {
   return get_contexts_callback_.Run(request, resource_context, request_context);
 }
 
 base::WeakPtr<ResourceMessageFilter> ResourceMessageFilter::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 }  // namespace content