Simplify media controls CSS

Source/core/rendering/RenderThemeChromiumSkia.h

 /*
  * This file is part of the WebKit project.
  *
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
  * Copyright (C) 2007 Holger Hans Peter Freyther
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008, 2009 Google, Inc.
  * All rights reserved.
  *
@@ skipping 23 matching lines @@
 
 class RenderProgress;
 
 class RenderThemeChromiumSkia : public RenderTheme {
 public:
     RenderThemeChromiumSkia();
     virtual ~RenderThemeChromiumSkia();
 
     virtual String extraDefaultStyleSheet();
     virtual String extraQuirksStyleSheet();
-    virtual String extraMediaControlsStyleSheet();
 
     virtual Color platformTapHighlightColor() const OVERRIDE
     {
         return Color(defaultTapHighlightColor);
     }
 
     // A method asking if the theme's controls actually care about redrawing when hovered.
     virtual bool supportsHover(const RenderStyle*) const;
 
     // A method asking if the theme is able to draw the focus ring.
@@ skipping 104 matching lines @@
     int menuListInternalPadding(RenderStyle*, int paddingType) const;
     bool paintMediaButtonInternal(GraphicsContext*, const IntRect&, Image*);
     IntRect convertToPaintingRect(RenderObject* inputRenderer, const RenderObject* partRenderer, LayoutRect partRect, const IntRect& localOffset) const;
 
     static const RGBA32 defaultTapHighlightColor = 0x2e000000; // 18% black.
 };
 
 } // namespace WebCore
 
 #endif // RenderThemeChromiumSkia_h