Remove RenderImage::styleDidChange.

Source/core/rendering/RenderImage.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  *
@@ skipping 123 matching lines @@
         imageSize = imageSize.expandedTo(paddedTextSize);
     }
 
     if (imageSize == intrinsicSize())
         return false;
 
     setIntrinsicSize(imageSize);
     return true;
 }
 
-void RenderImage::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
-{
-    RenderReplaced::styleDidChange(diff, oldStyle);
-}
-
 void RenderImage::imageChanged(WrappedImagePtr newImage, const IntRect* rect)
 {
     if (documentBeingDestroyed())
         return;
 
     if (hasBoxDecorations() || hasMask() || hasShapeOutside())
         RenderReplaced::imageChanged(newImage, rect);
 
     if (!m_imageResource)
         return;
@@ skipping 468 matching lines @@
         return 0;
 
     ImageResource* cachedImage = m_imageResource->cachedImage();
     if (cachedImage && cachedImage->image() && cachedImage->image()->isSVGImage())
         return toSVGImage(cachedImage->image())->embeddedContentBox();
 
     return 0;
 }
 
 } // namespace WebCore