Remove the virtual ThemePainter::paintMediaCastButton()

Source/core/paint/ThemePainterDefault.cpp

 /*
  * Copyright (C) 2007 Apple Inc.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Collabora Ltd.
  * Copyright (C) 2008, 2009 Google Inc.
  * Copyright (C) 2009 Kenneth Rohde Christiansen
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 410 matching lines @@
     LayoutRect magnifierRect(magnifierObject->offsetFromAncestorContainer(inputLayoutBox).width(),
         inputContentBox.y() + (inputContentBox.height() - magnifierSize + 1) / 2,
         magnifierSize, magnifierSize);
     IntRect paintingRect = convertToPaintingRect(inputLayoutBox, magnifierObject, magnifierRect, r);
 
     DEFINE_STATIC_REF(Image, magnifierImage, (Image::loadPlatformResource("searchMagnifier")));
     paintInfo.context->drawImage(magnifierImage, paintingRect);
     return false;
 }
 
-bool ThemePainterDefault::paintMediaCastButton(LayoutObject* object, const PaintInfo& paintInfo, const IntRect& rect)
-{
-    return MediaControlsPainter::paintMediaCastButton(object, paintInfo, rect);
-}
-
 } // namespace blink