High CPU and increased memory usage fix for high-res (GIF, WEBP...) animations.

third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 389 matching lines @@
 
 // FIXME: support CatchUpAnimation = CatchUp.
 void SVGImage::startAnimation(CatchUpAnimation)
 {
     SVGSVGElement* rootElement = svgRootElement(m_page.get());
     if (!rootElement || !rootElement->animationsPaused())
         return;
     rootElement->unpauseAnimations();
 }
 
-void SVGImage::stopAnimation()
-{
-    SVGSVGElement* rootElement = svgRootElement(m_page.get());
-    if (!rootElement)
-        return;
-    rootElement->pauseAnimations();
-}
-
 void SVGImage::resetAnimation()
 {
     SVGSVGElement* rootElement = svgRootElement(m_page.get());
     if (!rootElement)
         return;
     rootElement->pauseAnimations();
     rootElement->setCurrentTime(0);
 }
 
 bool SVGImage::hasAnimations() const
@@ skipping 108 matching lines @@
 
     return m_page;
 }
 
 String SVGImage::filenameExtension() const
 {
     return "svg";
 }
 
 } // namespace blink