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

chrome/test/base/ui_test_utils_aura.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/test/base/ui_test_utils.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 22 matching lines @@
   BrowserWindow* browser_window = browser->window();
   DCHECK(browser_window);
   views::View* view =
       reinterpret_cast<BrowserView*>(browser_window)->GetViewByID(vid);
   DCHECK(view);
   MoveMouseToCenterAndPress(
       view,
       ui_controls::LEFT,
       ui_controls::DOWN | ui_controls::UP,
       MessageLoop::QuitClosure());
-  RunMessageLoop();
+  content::RunMessageLoop();
 }
 
 void HideNativeWindow(gfx::NativeWindow window) {
   window->Hide();
 }
 
 bool ShowAndFocusNativeWindow(gfx::NativeWindow window) {
   window->Show();
   return true;
 }
 
 void MoveMouseToCenterAndPress(views::View* view,
                                ui_controls::MouseButton button,
                                int state,
                                const base::Closure& closure) {
   DCHECK(view);
   DCHECK(view->GetWidget());
   gfx::Point view_center(view->width() / 2, view->height() / 2);
   views::View::ConvertPointToScreen(view, &view_center);
   ui_controls::SendMouseMove(view_center.x(), view_center.y());
   ui_controls::SendMouseEventsNotifyWhenDone(button, state, closure);
 }
 
 }  // namespace ui_test_utils