Refactor: Shelf Widget

ash/shelf/background_animator.h

 // Copyright (c) 2012 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_LAUNCHER_BACKGROUND_ANIMATOR_H_
-#define ASH_LAUNCHER_BACKGROUND_ANIMATOR_H_
+#ifndef ASH_SHELF_BACKGROUND_ANIMATOR_H_
+#define ASH_SHELF_BACKGROUND_ANIMATOR_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/base/animation/slide_animation.h"
 
 namespace ash {
 namespace internal {
 
 // Delegate is notified any time the background changes.
 class ASH_EXPORT BackgroundAnimatorDelegate {
  public:
   virtual void UpdateBackground(int alpha) = 0;
 
  protected:
   virtual ~BackgroundAnimatorDelegate() {}
 };
 
-// BackgroundAnimator is used by the launcher and system tray to animate the
-// background (alpha).
+// BackgroundAnimator is used by the shelf to animate the background (alpha).
 class ASH_EXPORT BackgroundAnimator : public ui::AnimationDelegate {
  public:
   // How the background can be changed.
   enum ChangeType {
     CHANGE_ANIMATE,
     CHANGE_IMMEDIATE
   };
 
   BackgroundAnimator(BackgroundAnimatorDelegate* delegate,
                      int min_alpha,
@@ skipping 25 matching lines @@
 
   // Current alpha value of the background.
   int alpha_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundAnimator);
 };
 
 }  // namespace internal
 }  // namespace ash
 
-#endif  // ASH_LAUNCHER_BACKGROUND_ANIMATOR_H_
+#endif  // ASH_SHELF_BACKGROUND_ANIMATOR_H_