Eliminate ash::internal namespace

ash/shelf/shelf_tooltip_manager.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_SHELF_SHELF_TOOLTIP_MANAGER_H_
 #define ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
 #include "ash/shelf/shelf_types.h"
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "ui/events/event_handler.h"
 #include "ui/gfx/rect.h"
 #include "ui/views/bubble/bubble_border.h"
 #include "ui/views/bubble/bubble_delegate.h"
 
 namespace base {
 class Timer;
 }
 
 namespace views {
 class BubbleDelegateView;
 class Label;
 }
 
 namespace ash {
+class ShelfView;
+class ShelfLayoutManager;
+
 namespace test {
 class ShelfTooltipManagerTest;
 class ShelfViewTest;
 }
 
-namespace internal {
-class ShelfView;
-class ShelfLayoutManager;
-
 // ShelfTooltipManager manages the tooltip balloon poping up on shelf items.
 class ASH_EXPORT ShelfTooltipManager : public ui::EventHandler,
                                        public ShelfLayoutManagerObserver {
  public:
   ShelfTooltipManager(ShelfLayoutManager* shelf_layout_manager,
                       ShelfView* shelf_view);
   virtual ~ShelfTooltipManager();
 
   ShelfLayoutManager* shelf_layout_manager() { return shelf_layout_manager_; }
 
@@ skipping 60 matching lines @@
   scoped_ptr<base::Timer> timer_;
 
   ShelfLayoutManager* shelf_layout_manager_;
   ShelfView* shelf_view_;
 
   base::WeakPtrFactory<ShelfTooltipManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfTooltipManager);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SHELF_SHELF_TOOLTIP_MANAGER_H_