[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 f5b9c4d64cce15be5ce9aba4654e1d30e228d43f..fe96868135c5ca7610b3291a3398d29df53d24d7 100644
--- a/Source/core/rendering/svg/SVGRenderSupport.cpp
+++ b/Source/core/rendering/svg/SVGRenderSupport.cpp
@@ -100,16 +100,22 @@ 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);
+}
+
 // Update a bounding box taking into account the validity of the other bounding box.
 inline void SVGRenderSupport::updateObjectBoundingBox(FloatRect& objectBoundingBox, bool& objectBoundingBoxValid, RenderObject* other, FloatRect otherBoundingBox)
 {