Use shadows on launcher icons

ash/launcher/launcher_button.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_LAUNCHER_BUTTON_H_
 #define ASH_LAUNCHER_LAUNCHER_BUTTON_H_
 #pragma once
 
 #include "ui/views/controls/button/custom_button.h"
 #include "ui/views/controls/image_view.h"
@@ skipping 58 matching lines @@
   virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseCaptureLost() OVERRIDE;
   virtual bool OnMouseDragged(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseExited(const views::MouseEvent& event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual bool GetTooltipText(const gfx::Point& p,
                               string16* tooltip) const OVERRIDE;
 
+  // Sets the icon image with a shadow.
+  void SetShadowedImage(const SkBitmap& bitmap);
   // Override for custom initialization.
   virtual void Init();
   // Override to subclass IconView.
   virtual IconView* CreateIconView();
   IconView* icon_view() const { return icon_view_; }
   LauncherButtonHost* host() const { return host_; }
 
  private:
   // Updates the parts of the button to reflect the current state_. This may
   // add or remove views, layout and paint.
   void UpdateState();
 
   LauncherButtonHost* host_;
   IconView* icon_view_;
   // Draws a bar underneath the image to represent the state of the application.
   views::ImageView* bar_;
   // The current state of the application, multiple values of AppState are or'd
   // together.
   int state_;
 
   DISALLOW_COPY_AND_ASSIGN(LauncherButton);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_APP_LAUNCHER_BUTTON_H_