Use mojo for Chrome Loading, Part 1

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/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/host_zoom_level_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
@@ skipping 31 matching lines @@
 void ResourceMessageFilter::OnChannelClosing() {
   // Unhook us from all pending network requests so they don't get sent to a
   // deleted object.
   ResourceDispatcherHostImpl::Get()->CancelRequestsForProcess(child_id_);
 }
 
 bool ResourceMessageFilter::OnMessageReceived(const IPC::Message& message) {
   return ResourceDispatcherHostImpl::Get()->OnMessageReceived(message, this);
 }
 
+void ResourceMessageFilter::OnDestruct() const {
+  // Destroy the filter on the IO thread since that's where its weak pointers
+  // are being used.
+  BrowserThread::DeleteOnIOThread::Destruct(this);
+}
+
 void ResourceMessageFilter::GetContexts(
     ResourceType resource_type,
     int origin_pid,
     ResourceContext** resource_context,
     net::URLRequestContext** request_context) {
   return get_contexts_callback_.Run(resource_type, origin_pid, resource_context,
                                     request_context);
 }
 
 const HostZoomMap* ResourceMessageFilter::GetHostZoomMap() const {
   if (host_zoom_level_context_.get())
     return host_zoom_level_context_->GetHostZoomMap();
   return NULL;
 }
 
 base::WeakPtr<ResourceMessageFilter> ResourceMessageFilter::GetWeakPtr() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 }  // namespace content