Refactor the guts of ResourceDispatcherHostImpl into a new class named

chrome/browser/renderer_host/safe_browsing_resource_throttle.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 "chrome/browser/renderer_host/safe_browsing_resource_throttle.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prerender/prerender_tracker.h"
 #include "chrome/browser/renderer_host/chrome_url_request_user_data.h"
-#include "content/public/browser/resource_throttle_controller.h"
+#include "content/public/browser/resource_controller.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_request.h"
 
 // Maximum time in milliseconds to wait for the safe browsing service to
 // verify a URL. After this amount of time the outstanding check will be
 // aborted, and the URL will be treated as if it were safe.
 static const int kCheckUrlTimeoutMs = 5000;
 
 // TODO(eroman): Downgrade these CHECK()s to DCHECKs once there is more
 //               unit test coverage.
@@ skipping 175 matching lines @@
   OnBrowseUrlCheckResult(url_being_checked_, SafeBrowsingService::SAFE);
 }
 
 void SafeBrowsingResourceThrottle::ResumeRequest() {
   CHECK(state_ == STATE_NONE);
   CHECK(defer_state_ != DEFERRED_NONE);
 
   defer_state_ = DEFERRED_NONE;
   controller()->Resume();
 }