Compositor hit test performance improvement

Source/core/rendering/svg/RenderSVGModelObject.cpp

 /*
  * Copyright (c) 2009, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 82 matching lines @@
     SVGResourcesCache::clientDestroyed(this);
     RenderObject::willBeDestroyed();
 }
 
 void RenderSVGModelObject::computeLayerHitTestRects(LayerHitTestRects& rects) const
 {
     // Using just the rect for the SVGRoot is good enough for now.
     SVGRenderSupport::findTreeRootObject(this)->computeLayerHitTestRects(rects);
 }
 
-void RenderSVGModelObject::addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentLayer, const LayoutPoint& layerOffset) const
+void RenderSVGModelObject::addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentLayer, const LayoutPoint& layerOffset, const LayoutRect& containerRect) const
 {
     // We don't walk into SVG trees at all - just report their container.
 }
 
 void RenderSVGModelObject::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
 {
     if (diff == StyleDifferenceLayout) {
         setNeedsBoundariesUpdate();
         if (newStyle->hasTransform())
             setNeedsTransformUpdate();
@@ skipping 85 matching lines @@
     if (!isGraphicsElement(renderer))
         return false;
     AffineTransform ctm;
     SVGElement* svgElement = toSVGElement(renderer->node());
     getElementCTM(svgElement, ctm);
     ASSERT(svgElement->renderer());
     return rect.contains(ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
 }
 
 } // namespace WebCore