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

chrome/browser/ui/intents/web_intent_picker_controller_browsertest.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 <algorithm>
 #include <iterator>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 125 matching lines @@
     num_extension_icons_changed_++;
   }
   virtual void OnInlineDisposition(
       const string16& title, const GURL& url) OVERRIDE {
     num_inline_disposition_++;
   }
 
   void Wait() {
     if (!pending_async_completed_) {
       message_loop_started_ = true;
-      ui_test_utils::RunMessageLoop();
+      content::RunMessageLoop();
       pending_async_completed_ = false;
     }
   }
 
   void StopWaiting() {
     pending_async_completed_ = true;
     if (message_loop_started_)
       MessageLoop::current()->Quit();
   }
 
@@ skipping 466 matching lines @@
 
   EXPECT_EQ(2, picker_.num_installed_services_);
 
   // The tab is shown immediately without needing to call OnServiceChosen.
   ASSERT_EQ(2, browser()->tab_count());
   EXPECT_EQ(GURL(kServiceURL1),
             chrome::GetActiveWebContents(browser())->GetURL());
 
   EXPECT_TRUE(dispatcher.dispatched_);
 }