Rename the aura_shell namespace to ash

ash/drag_drop/drag_drop_controller.h

 // Copyright (c) 2011 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_DRAG_DROP_DRAG_DROP_CONTROLLER_H_
 #define ASH_DRAG_DROP_DRAG_DROP_CONTROLLER_H_
 #pragma once
 
 #include "ash/ash_export.h"
 #include "ui/aura/client/drag_drop_client.h"
 #include "ui/aura/event.h"
 #include "ui/aura/event_filter.h"
 #include "ui/base/dragdrop/os_exchange_data.h"
 #include "ui/base/events.h"
 #include "ui/gfx/point.h"
 
 namespace aura {
 class Window;
 }
 
-namespace aura_shell {
+namespace ash {
 
 namespace test {
 class DragDropControllerTest;
 }
 
 namespace internal {
 
 class DragImageView;
 
 class ASH_EXPORT DragDropController
@@ skipping 19 matching lines @@
 
   // Overridden from aura::EventFilter:
   virtual bool PreHandleKeyEvent(aura::Window* target,
                                  aura::KeyEvent* event) OVERRIDE;
   virtual bool PreHandleMouseEvent(aura::Window* target,
                                    aura::MouseEvent* event) OVERRIDE;
   virtual ui::TouchStatus PreHandleTouchEvent(aura::Window* target,
                                               aura::TouchEvent* event) OVERRIDE;
 
  private:
-  friend class aura_shell::test::DragDropControllerTest;
+  friend class ash::test::DragDropControllerTest;
 
   // Helper method to reset everything.
   void Cleanup();
 
   scoped_ptr<DragImageView> drag_image_;
   const ui::OSExchangeData* drag_data_;
   int drag_operation_;
   aura::Window* dragged_window_;
 
   bool drag_drop_in_progress_;
 
   // Indicates whether the caller should be blocked on a drag/drop session.
   // Only be used for tests.
   bool should_block_during_drag_drop_;
 
   DISALLOW_COPY_AND_ASSIGN(DragDropController);
 };
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash
 
 #endif  // ASH_DRAG_DROP_DRAG_DROP_CONTROLLER_H_