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

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

Index: third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
diff --git a/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp b/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
index 445d94625bfcd6d4d36aedafa356b432db45357f..4ddf736906c0b3b2150a949586fd42cd2f5c9521 100644
--- a/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
+++ b/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
@@ -407,14 +407,6 @@ void SVGImage::startAnimation(CatchUpAnimation)
     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());