Eliminate ash::internal namespace

ash/display/display_info.h

 // Copyright (c) 2013 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 ASH_DISPLAY_DISPLAY_INFO_H_
 #define ASH_DISPLAY_DISPLAY_INFO_H_
 
 #include <string>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "ui/display/display_constants.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/rect.h"
 
 namespace ash {
-namespace internal {
 
 // A struct that represents the display's mode info.
 struct ASH_EXPORT DisplayMode {
   DisplayMode();
   DisplayMode(const gfx::Size& size,
               float refresh_rate,
               bool interlaced,
               bool native);
 
   gfx::Size size;      // Physical pixel size of the display.
@@ skipping 189 matching lines @@
   // The list of modes supported by this display.
   std::vector<DisplayMode> display_modes_;
 
   // The current profile of the color calibration.
   ui::ColorCalibrationProfile color_profile_;
 
   // The list of available variations for the color calibration.
   std::vector<ui::ColorCalibrationProfile> available_color_profiles_;
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  //  ASH_DISPLAY_DISPLAY_INFO_H_