Aura: New window shadows, desktop background debug toggle

ash/wm/shadow_controller.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_WM_SHADOW_CONTROLLER_H_
 #define ASH_WM_SHADOW_CONTROLLER_H_
 #pragma once
 
 #include <map>
 
@@ skipping 52 matching lines @@
  private:
   typedef std::map<aura::Window*, linked_ptr<Shadow> > WindowShadowMap;
 
   // Checks if |window| is visible and contains a property requesting a shadow.
   bool ShouldShowShadowForWindow(aura::Window* window) const;
 
   // Returns |window|'s shadow from |window_shadows_|, or NULL if no shadow
   // exists.
   Shadow* GetShadowForWindow(aura::Window* window);
 
+  // Updates the shadow style for |window| based on whether it is |active|.
+  void HandleWindowActivationChange(aura::Window* window, bool active);
+
   // Shows or hides |window|'s shadow as needed (creating the shadow if
   // necessary).
   void HandlePossibleShadowVisibilityChange(aura::Window* window);
 
   // Creates a new shadow for |window| and stores it in |window_shadows_|.  The
   // shadow's bounds are initialized and it is added to the window's layer.
   void CreateShadowForWindow(aura::Window* window);
 
   WindowShadowMap window_shadows_;
 
   DISALLOW_COPY_AND_ASSIGN(ShadowController);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_SHADOW_CONTROLLER_H_