Move ui_test_utils::RunMessageLoop to test_utils so that it can be reused by content_browsertests.

chrome/browser/search_engines/template_url_scraper_unittest.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/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/search_engines/template_url_prepopulate_data.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 13 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(TemplateURLScraperTest);
 };
 
 class TemplateURLServiceLoader : public content::NotificationObserver {
  public:
   explicit TemplateURLServiceLoader(TemplateURLService* model) : model_(model) {
     registrar_.Add(this, chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED,
                    content::Source<TemplateURLService>(model));
     model_->Load();
-    ui_test_utils::RunMessageLoop();
+    content::RunMessageLoop();
   }
 
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) {
     if (type == chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED &&
         content::Source<TemplateURLService>(source).ptr() == model_) {
       MessageLoop::current()->Quit();
     }
   }
@@ skipping 34 matching lines @@
       HTTPTestServer::CreateServerWithFileRootURL(
           L"chrome/test/data/template_url_scraper/submit_handler", L"/",
           g_browser_process->io_thread()->message_loop()));
   ui_test_utils::NavigateToURLBlockUntilNavigationsComplete(
       browser(), GURL("http://www.foo.com:1337/"), 2);
 
   all_urls = template_urls->GetTemplateURLs();
   EXPECT_EQ(1, all_urls.size() - prepopulate_urls.size());
 }
 */