Modify AsyncResourceHandler to use a single shared memory buffer (in ring

content/browser/renderer_host/resource_dispatcher_host_impl.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/browser/renderer_host/resource_dispatcher_host_impl.h"
 
 #include <set>
 #include <vector>
@@ skipping 362 matching lines @@
       BrowserThread::IO, FROM_HERE,
       base::Bind(&appcache::AppCacheInterceptor::EnsureRegistered));
 
   update_load_states_timer_.reset(
       new base::RepeatingTimer<ResourceDispatcherHostImpl>());
 }
 
 ResourceDispatcherHostImpl::~ResourceDispatcherHostImpl() {
   DCHECK(g_resource_dispatcher_host);
   g_resource_dispatcher_host = NULL;
-  AsyncResourceHandler::GlobalCleanup();
 }
 
 // static
 ResourceDispatcherHostImpl* ResourceDispatcherHostImpl::Get() {
   return g_resource_dispatcher_host;
 }
 
 void ResourceDispatcherHostImpl::SetDelegate(
     ResourceDispatcherHostDelegate* delegate) {
   delegate_ = delegate;
@@ skipping 1326 matching lines @@
 
   return i->second.get();
 }
 
 ResourceLoader* ResourceDispatcherHostImpl::GetLoader(int child_id,
                                                       int request_id) const {
   return GetLoader(GlobalRequestID(child_id, request_id));
 }
 
 }  // namespace content