Fixing opacity for browser frame window on ASH/Windows.

ui/views/views_delegate.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 UI_VIEWS_VIEWS_DELEGATE_H_
 #define UI_VIEWS_VIEWS_DELEGATE_H_
 
 #include <string>
 
 #if defined(OS_WIN)
@@ skipping 84 matching lines @@
 #elif defined(OS_LINUX) && !defined(OS_CHROMEOS)
   virtual gfx::ImageSkia* GetDefaultWindowIcon() const = 0;
 #endif
 
   // Creates a default NonClientFrameView to be used for windows that don't
   // specify their own. If this function returns NULL, the
   // views::CustomFrameView type will be used.
   virtual NonClientFrameView* CreateDefaultNonClientFrameView(
       Widget* widget) = 0;
 
-  // Returns whether the embedding app wants windows to be created with the
-  // views::Widget marked as transparent.  For example, an app may wish to
-  // apply transparent window frames in the NonClientFrameView.
-  virtual bool UseTransparentWindows() const = 0;
-
   // AddRef/ReleaseRef are invoked while a menu is visible. They are used to
   // ensure we don't attempt to exit while a menu is showing.
   virtual void AddRef() = 0;
   virtual void ReleaseRef() = 0;
 
   // Creates a web contents. This will return NULL unless overriden.
   virtual content::WebContents* CreateWebContents(
       content::BrowserContext* browser_context,
       content::SiteInstance* site_instance) = 0;
 
   // Gives the platform a chance to modify the properties of a Widget.
   virtual void OnBeforeWidgetInit(Widget::InitParams* params,
                                   internal::NativeWidgetDelegate* delegate) = 0;
 
   // Returns the default obscured text reveal duration.
   virtual base::TimeDelta GetDefaultTextfieldObscuredRevealDuration() = 0;
 
  private:
   scoped_ptr<ViewsTouchSelectionControllerFactory> views_tsc_factory_;
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEWS_DELEGATE_H_