[DRAFT] Create RenderFrameHostManager.

content/browser/loader/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/loader/resource_dispatcher_host_impl.h"
 
 #include <set>
 #include <vector>
@@ skipping 1113 matching lines @@
 
   // The RedirectToFileResourceHandler depends on being next in the chain.
   if (request_data.download_to_file) {
     handler.reset(
         new RedirectToFileResourceHandler(handler.Pass(), request, this));
   }
 
   // Install a CrossSiteResourceHandler for all main frame requests.  This will
   // let us check whether a transfer is required and pause for the unload
   // handler either if so or if a cross-process navigation is already under way.
- if (request_data.resource_type == ResourceType::MAIN_FRAME &&
+ if ((request_data.resource_type == ResourceType::MAIN_FRAME ||
+      request_data.resource_type == ResourceType::SUB_FRAME) &&
      process_type == PROCESS_TYPE_RENDERER) {
     handler.reset(new CrossSiteResourceHandler(handler.Pass(), request));
   }
 
   // Insert a buffered event handler before the actual one.
   handler.reset(
       new BufferedResourceHandler(handler.Pass(), this, request));
 
   ScopedVector<ResourceThrottle> throttles;
   if (delegate_) {
@@ skipping 788 matching lines @@
   if ((load_flags & net::LOAD_REPORT_RAW_HEADERS)
       && !policy->CanReadRawCookies(child_id)) {
     VLOG(1) << "Denied unauthorized request for raw headers";
     load_flags &= ~net::LOAD_REPORT_RAW_HEADERS;
   }
 
   return load_flags;
 }
 
 }  // namespace content