Refactor the guts of ResourceDispatcherHostImpl into a new class named

content/browser/renderer_host/buffered_resource_handler.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/renderer_host/buffered_resource_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 379 matching lines @@
   // Remove the non-owning pointer to the CrossSiteResourceHandler, if any,
   // from the extra request info because the CrossSiteResourceHandler (part of
   // the original ResourceHandler chain) will be deleted by the next statement.
   ResourceRequestInfoImpl* info =
       ResourceRequestInfoImpl::ForRequest(request_);
   info->set_cross_site_handler(NULL);
 
   // This is handled entirely within the new ResourceHandler, so just reset the
   // original ResourceHandler.
   next_handler_ = handler.Pass();
+  next_handler_->SetController(controller());
 
   next_handler_needs_response_started_ = true;
   next_handler_needs_will_read_ = true;
 
   return ForwardPendingEventsToNextHandler(request_id, defer);
 }
 
 bool BufferedResourceHandler::ForwardPendingEventsToNextHandler(int request_id,
                                                                 bool* defer) {
   if (next_handler_needs_response_started_) {
@@ skipping 29 matching lines @@
     const std::vector<webkit::WebPluginInfo>& plugins) {
   bool needs_resume = deferred_waiting_for_plugins_;
   deferred_waiting_for_plugins_ = false;
 
   wait_for_plugins_ = false;
   if (!request_)
     return;
 
   ResourceRequestInfoImpl* info =
       ResourceRequestInfoImpl::ForRequest(request_);
-  int child_id = info->GetChildID();
   int request_id = info->GetRequestID();
 
   bool defer = false;
   if (!CompleteResponseStarted(request_id, &defer)) {
-    host_->CancelRequest(child_id, request_id, false);
+    controller()->Cancel();
   } else if (!defer && needs_resume) {
-    host_->ResumeDeferredRequest(child_id, request_id);
+    controller()->Resume();
   }
 }
 
 }  // namespace content