Remove unused and undefined RenderImage::highQualityRepaintTimerFired

Source/core/rendering/RenderImage.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * 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 40 matching lines @@
     const RenderImageResource* imageResource() const { return m_imageResource.get(); }
     ImageResource* cachedImage() const { return m_imageResource ? m_imageResource->cachedImage() : 0; }
 
     bool setImageSizeForAltText(ImageResource* newImage = 0);
 
     void updateAltText();
 
     HTMLMapElement* imageMap() const;
     void areaElementFocusChanged(HTMLAreaElement*);
 
-    void highQualityRepaintTimerFired(Timer<RenderImage>*);
-
     void setIsGeneratedContent(bool generated = true) { m_isGeneratedContent = generated; }
 
     bool isGeneratedContent() const { return m_isGeneratedContent; }
 
     String altText() const { return m_altText; }
 
     inline void setImageDevicePixelRatio(float factor) { m_imageDevicePixelRatio = factor; }
     float imageDevicePixelRatio() const { return m_imageDevicePixelRatio; }
 
     virtual void intrinsicSizeChanged() OVERRIDE
@@ skipping 45 matching lines @@
     float m_imageDevicePixelRatio;
 
     friend class RenderImageScaleObserver;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderImage, isRenderImage());
 
 } // namespace blink
 
 #endif // RenderImage_h