Add PrerenderResourceHandler and hook it into the ResourceDispatcherHost....

chrome/browser/renderer_host/resource_dispatcher_host.cc

 // Copyright (c) 2010 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 "chrome/browser/renderer_host/resource_dispatcher_host.h"
 
 #include <set>
 #include <vector>
@@ skipping 13 matching lines @@
 #include "chrome/browser/download/download_file_manager.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/download/download_request_limiter.h"
 #include "chrome/browser/download/save_file_manager.h"
 #include "chrome/browser/extensions/user_script_listener.h"
 #include "chrome/browser/external_protocol_handler.h"
 #include "chrome/browser/in_process_webkit/webkit_thread.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/net/url_request_tracking.h"
 #include "chrome/browser/plugin_service.h"
+#include "chrome/browser/prerender/prerender_resource_handler.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_host/async_resource_handler.h"
 #include "chrome/browser/renderer_host/buffered_resource_handler.h"
 #include "chrome/browser/renderer_host/cross_site_resource_handler.h"
 #include "chrome/browser/renderer_host/download_resource_handler.h"
 #include "chrome/browser/renderer_host/global_request_id.h"
 #include "chrome/browser/renderer_host/redirect_to_file_resource_handler.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_view_host_delegate.h"
 #include "chrome/browser/renderer_host/render_view_host_notification_task.h"
@@ skipping 393 matching lines @@
   request->set_context(context);
   request->set_priority(DetermineRequestPriority(request_data.resource_type));
 
   // Set upload data.
   uint64 upload_size = 0;
   if (request_data.upload_data) {
     request->set_upload(request_data.upload_data);
     upload_size = request_data.upload_data->GetContentLength();
   }
 
+  // Install a PrerenderResourceHandler if the requested URL could
+  // be prerendered. This should be in front of the [a]syncResourceHandler,
+  // but after the BufferedResourceHandler since it depends on the MIME
+  // sniffing capabilities in the BufferedResourceHandler.
+  PrerenderResourceHandler* pre_handler = PrerenderResourceHandler::MaybeCreate(
+      *request, context, handler);
+  if (pre_handler)
+    handler = pre_handler;
+
   // Install a CrossSiteResourceHandler if this request is coming from a
   // RenderViewHost with a pending cross-site request.  We only check this for
   // MAIN_FRAME requests. Unblock requests only come from a blocked page, do
   // not count as cross-site, otherwise it gets blocked indefinitely.
   if (request_data.resource_type == ResourceType::MAIN_FRAME &&
       process_type == ChildProcessInfo::RENDER_PROCESS &&
       CrossSiteRequestManager::GetInstance()->
           HasPendingCrossSiteRequest(child_id, route_id)) {
     // Wrap the event handler to be sure the current page's onunload handler
     // has a chance to run before we render the new page.
@@ skipping 1456 matching lines @@
   return is_prefetch_enabled_;
 }
 
 // static
 void ResourceDispatcherHost::set_is_prefetch_enabled(bool value) {
   is_prefetch_enabled_ = value;
 }
 
 // static
 bool ResourceDispatcherHost::is_prefetch_enabled_ = false;