Consolidated checks for the PaintBehaviorRenderingSVGMask flag

Source/core/rendering/svg/SVGRenderSupport.h

 /**
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 32 matching lines @@
 class TransformState;
 
 class SVGRenderSupport {
 public:
     // Shares child layouting code between RenderSVGRoot/RenderSVG(Hidden)Container
     static void layoutChildren(RenderObject*, bool selfNeedsLayout);
 
     // 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&);
 
     // Determines whether a container needs to be laid out because it's filtered and a child is being laid out.
     static bool filtersForceContainerLayout(RenderObject*);
 
     // Determines whether the passed point lies in a clipping area
     static bool pointInClippingArea(RenderObject*, const FloatPoint&);
 
     // Transform |pointInParent| to |object|'s user-space and check if it is
@@ skipping 29 matching lines @@
     static bool isRenderableTextNode(const RenderObject*);
 
 private:
     static void updateObjectBoundingBox(FloatRect& objectBoundingBox, bool& objectBoundingBoxValid, RenderObject* other, FloatRect otherBoundingBox);
     static bool layoutSizeOfNearestViewportChanged(const RenderObject* start);
 };
 
 } // namespace blink
 
 #endif // SVGRenderSupport_h