[RAL] Reduce SVG tree walks

Source/core/rendering/svg/SVGRenderSupport.cpp

Index: Source/core/rendering/svg/SVGRenderSupport.cpp
diff --git a/Source/core/rendering/svg/SVGRenderSupport.cpp b/Source/core/rendering/svg/SVGRenderSupport.cpp
index 722c7164e069689af4adc9f5fab26a3a1da5cd91..95a45f1ce22d205cdc781734f7c997c58ce20fa7 100644
--- a/Source/core/rendering/svg/SVGRenderSupport.cpp
+++ b/Source/core/rendering/svg/SVGRenderSupport.cpp
@@ -94,16 +94,22 @@ const RenderObject* SVGRenderSupport::pushMappingToContainer(const RenderObject*
     return parent;
 }
 
-bool SVGRenderSupport::checkForSVGRepaintDuringLayout(RenderObject* object)
+bool SVGRenderSupport::parentTransformDidChange(RenderObject* object)
 {
-    if (!object->checkForRepaintDuringLayout())
-        return false;
     // When a parent container is transformed in SVG, all children will be painted automatically
     // so we are able to skip redundant repaint checks.
     RenderObject* parent = object->parent();
     return !(parent && parent->isSVGContainer() && toRenderSVGContainer(parent)->didTransformToRootUpdate());
 }
 
+bool SVGRenderSupport::checkForSVGRepaintDuringLayout(RenderObject* object)
+{
+    if (!object->checkForRepaintDuringLayout())
+        return false;
+
+    return parentTransformDidChange(object);
+}
+
 bool SVGRenderSupport::paintInfoIntersectsRepaintRect(const FloatRect& localRepaintRect, const AffineTransform& localTransform, const PaintInfo& paintInfo)
 {
     return localTransform.mapRect(localRepaintRect).intersects(paintInfo.rect);