Separate repaint and layout requirements of StyleDifference (Step 1)

Source/core/rendering/svg/SVGResourcesCache.cpp

Index: Source/core/rendering/svg/SVGResourcesCache.cpp
diff --git a/Source/core/rendering/svg/SVGResourcesCache.cpp b/Source/core/rendering/svg/SVGResourcesCache.cpp
index 685682d98dc71f5f9e2be93367283ff104a67194..ab0cf0d4b715dce10dc771359195e845a84dcc53 100644
--- a/Source/core/rendering/svg/SVGResourcesCache.cpp
+++ b/Source/core/rendering/svg/SVGResourcesCache.cpp
@@ -122,11 +122,11 @@ void SVGResourcesCache::clientStyleChanged(RenderObject* renderer, StyleDifferen
     ASSERT(renderer->node());
     ASSERT(renderer->node()->isSVGElement());
 
-    if (diff == StyleDifferenceEqual || !renderer->parent())
+    if (diff.noChange() || !renderer->parent())
         return;
 
     // In this case the proper SVGFE*Element will decide whether the modified CSS properties require a relayout or repaint.
-    if (renderer->isSVGResourceFilterPrimitive() && diff == StyleDifferenceRepaint)
+    if (renderer->isSVGResourceFilterPrimitive() && !diff.needsLayout())
         return;
 
     // Dynamic changes of CSS properties like 'clip-path' may require us to recompute the associated resources for a renderer.