Fix namespace for src/ui/display/.

ui/display/manager/chromeos/test/action_logger.h

 // Copyright 2014 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.
 
 #ifndef UI_DISPLAY_MANAGER_CHROMEOS_TEST_ACTION_LOGGER_H_
 #define UI_DISPLAY_MANAGER_CHROMEOS_TEST_ACTION_LOGGER_H_
 
 #include <string>
 
 #include "base/macros.h"
 
-namespace ui {
+namespace display {
 namespace test {
 
 class ActionLogger {
  public:
   ActionLogger();
   ~ActionLogger();
 
   void AppendAction(const std::string& action);
 
   // Returns a comma-separated string describing the actions that were
   // requested since the previous call to GetActionsAndClear() (i.e.
   // results are non-repeatable).
   std::string GetActionsAndClear();
 
  private:
   std::string actions_;
 
   DISALLOW_COPY_AND_ASSIGN(ActionLogger);
 };
 
 }  // namespace test
-}  // namespace ui
+}  // namespace display
 
 #endif  // UI_DISPLAY_MANAGER_CHROMEOS_TEST_ACTION_LOGGER_H_