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

content/test/test_utils.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 "content/public/test/test_utils.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 20 matching lines @@
   } else {
     MessageLoop::current()->PostTask(FROM_HERE,
         base::Bind(&DeferredQuitRunLoop, quit_task, num_quit_deferrals - 1));
   }
 }
 
 }
 
 namespace content {
 
+void RunMessageLoop() {
+  base::RunLoop run_loop;
+  RunThisRunLoop(&run_loop);
+}
+
 void RunThisRunLoop(base::RunLoop* run_loop) {
   MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
 
   // If we're running inside a browser test, we might need to allow the test
   // launcher to do extra work before/after running a nested message loop.
   test_launcher::TestLauncherDelegate* delegate =
       test_launcher::GetCurrentTestLauncherDelegate();
   if (delegate)
     delegate->PreRunMessageLoop(run_loop);
   run_loop->Run();
@@ skipping 53 matching lines @@
   details_ = details;
   seen_ = true;
   if (!running_)
     return;
 
   message_loop_runner_->Quit();
   running_ = false;
 }
 
 }  // namespace content