Make panels turn on or off shadow effect.

chrome/browser/ui/cocoa/panels/panel_cocoa.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 CHROME_BROWSER_UI_COCOA_PANELS_PANEL_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_PANELS_PANEL_COCOA_H_
 
 #import <Foundation/Foundation.h>
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/panels/native_panel.h"
@@ skipping 46 matching lines @@
 
   // These sizes are in screen coordinates.
   virtual gfx::Size WindowSizeFromContentSize(
       const gfx::Size& content_size) const OVERRIDE;
   virtual gfx::Size ContentSizeFromWindowSize(
       const gfx::Size& window_size) const OVERRIDE;
   virtual int TitleOnlyHeight() const OVERRIDE;
 
   virtual void MinimizePanelBySystem() OVERRIDE;
   virtual bool IsPanelMinimizedBySystem() const OVERRIDE;
+  virtual void SetPanelHasShadow(bool has_shadow) OVERRIDE;

[Dmitry Titov, 2013/04/16 23:26:47]

Naming: I think "ShowShadow(bool show)" could be simpler.

[jianli, 2013/04/16 23:46:03]

Done.

   virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;
 
   Panel* panel() const;
   void DidCloseNativeWindow();
 
  private:
   friend class CocoaNativePanelTesting;
   friend class PanelCocoaTest;
   FRIEND_TEST_ALL_PREFIXES(PanelCocoaTest, CreateClose);
   FRIEND_TEST_ALL_PREFIXES(PanelCocoaTest, NativeBounds);
@@ skipping 23 matching lines @@
   bool is_shown_;  // Panel is hidden on creation, Show() changes that forever.
   NSInteger attention_request_id_;  // identifier from requestUserAttention.
 
   // Indicates how the window corner should be rendered, rounded or not.
   panel::CornerStyle corner_style_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelCocoa);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_PANELS_PANEL_COCOA_H_