Implement ui_controls for aura

chrome/browser/automation/ui_controls_internal.cc

 // Copyright (c) 2010 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/automation/ui_controls_internal.h"
 
 namespace ui_controls {
+namespace internal {
 
 void ClickTask(MouseButton button, int state, const base::Closure& followup) {
   if (!followup.is_null())
     SendMouseEventsNotifyWhenDone(button, state, followup);
   else
     SendMouseEvents(button, state);
 }
 
-}  // ui_controls
+}  // namespace internal
+}  // namespace ui_controls