Last patch in removing MessageLoop* caching.

chrome/browser/privacy_blacklist/blacklist_observer.cc

 // Copyright (c) 2009 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/privacy_blacklist/blacklist_observer.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/string16.h"
 #include "chrome/browser/blocked_popup_container.h"
+#include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/privacy_blacklist/blacklist.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host_request_info.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/notification_details.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/notification_type.h"
 #include "grit/generated_resources.h"
 
@@ skipping 35 matching lines @@
   string16 reason_;
 };
 
 void BlacklistObserver::ContentBlocked(const URLRequest* request) {
   const URLRequest::UserData* d =
       request->GetUserData(&Blacklist::kRequestDataKey);
   const Blacklist::Match* match = static_cast<const Blacklist::Match*>(d);
   const ResourceDispatcherHostRequestInfo* info =
       ResourceDispatcherHost::InfoForRequest(request);
   const GURL& gurl = request->url();
-  BlockedContentNotice* task = new BlockedContentNotice(gurl, match, info);
 
-  // Notify the UI that something non-visual has been blocked. We can
-  // safely cast the delegate to the ResourceDispatherHost because it
-  // is the only place where Blacklist::Match data is added to requests.
-  static_cast<ResourceDispatcherHost*>(request->delegate())->
-      ui_loop()->PostTask(FROM_HERE, task);
+  // Notify the UI that something non-visual has been blocked.
+  ChromeThread::PostTask(
+      ChromeThread::UI, FROM_HERE,
+      new BlockedContentNotice(gurl, match, info));
 }