Eliminate ash::internal namespace

ash/frame/caption_buttons/alternate_frame_size_button.h

 // Copyright 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_FRAME_CAPTION_BUTTONS_ALTERNATE_FRAME_SIZE_BUTTON_H_
 #define ASH_FRAME_CAPTION_BUTTONS_ALTERNATE_FRAME_SIZE_BUTTON_H_
 
 #include "ash/ash_export.h"
 #include "ash/frame/caption_buttons/alternate_frame_size_button_delegate.h"
 #include "ash/frame/caption_buttons/frame_caption_button.h"
 #include "ash/wm/workspace/snap_types.h"
 #include "base/timer/timer.h"
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 class AlternateFrameSizeButtonDelegate;
-
-namespace internal {
 class PhantomWindowController;
-}
 
 // The maximize/restore button when using the alternate button style.
 // When the mouse is pressed over the size button or the size button is touched:
 // - The minimize and close buttons are set to snap left and snap right
 //   respectively.
 // - The size button stays pressed while the mouse is over the buttons to snap
 //   left and to snap right. The button underneath the mouse is hovered.
 // When the drag terminates, the action for the button underneath the mouse
 // is executed. For the sake of simplicity, the size button is the event
 // handler for a click starting on the size button and the entire drag.
@@ skipping 70 matching lines @@
   bool in_snap_mode_;
 
   // The action to execute when the drag/click is ended. If
   // |snap_type_| == SNAP_NONE, the size button's default action is run when the
   // drag/click is ended.
   SnapType snap_type_;
 
   // Displays a preview of how the window's bounds will change as a result of
   // snapping the window left or right. The preview is only visible if the snap
   // left or snap right button is pressed.
-  scoped_ptr<internal::PhantomWindowController> phantom_window_controller_;
+  scoped_ptr<PhantomWindowController> phantom_window_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AlternateFrameSizeButton);
 };
 
 }  // namespace ash
 
 #endif  // ASH_FRAME_CAPTION_BUTTONS_ALTERNATE_FRAME_SIZE_BUTTON_H_