Consolidated checks for the PaintBehaviorRenderingSVGMask flag

Source/core/rendering/svg/SVGRenderSupport.h

Index: Source/core/rendering/svg/SVGRenderSupport.h
diff --git a/Source/core/rendering/svg/SVGRenderSupport.h b/Source/core/rendering/svg/SVGRenderSupport.h
index fda0412a43aeb3f69096f17c2b9afc71765a67ab..c28e5916193e13ce65eec86d75c4f456947e1a9e 100644
--- a/Source/core/rendering/svg/SVGRenderSupport.h
+++ b/Source/core/rendering/svg/SVGRenderSupport.h
@@ -50,9 +50,12 @@ public:
     // Layout resources used by this node.
     static void layoutResourcesIfNeeded(const RenderObject*);
 
-    // Helper function determining wheter overflow is hidden
+    // Helper function determining whether overflow is hidden.
     static bool isOverflowHidden(const RenderObject*);
 
+    // Returns true if we're currently within the rendering of a clip-path as a mask.
+    static bool isRenderingMaskImage(const RenderObject&);

[pdr., 2014/10/03 17:06:58]

(maybe as a followup) Could we rename this to reflect that it's only for clip
paths? Maybe something like isRenderingClipPathAsMaskImage?

[fs, 2014/10/06 08:00:12]

Yeah. Makes sense. Will do. (Just reused the currently existing name for this.)

+
     // Calculates the paintInvalidationRect in combination with filter, clipper and masker in local coordinates.
     static void intersectPaintInvalidationRectWithResources(const RenderObject*, FloatRect&);