Consolidated checks for the PaintBehaviorRenderingSVGMask flag

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 397b16c5542c88546e3edd278f3308131f557b5e..9b319c4ad07920bd862c3335bfe27fffd865c0cc 100644
--- a/Source/core/rendering/svg/SVGRenderSupport.cpp
+++ b/Source/core/rendering/svg/SVGRenderSupport.cpp
@@ -25,6 +25,8 @@
 #include "config.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
 
+#include "core/frame/FrameView.h"
+#include "core/frame/LocalFrame.h"
 #include "core/rendering/PaintInfo.h"
 #include "core/rendering/RenderGeometryMap.h"
 #include "core/rendering/RenderLayer.h"
@@ -274,6 +276,11 @@ bool SVGRenderSupport::isOverflowHidden(const RenderObject* object)
     return object->style()->overflowX() == OHIDDEN || object->style()->overflowX() == OSCROLL;
 }
 
+bool SVGRenderSupport::isRenderingMaskImage(const RenderObject& object)
+{
+    return object.frame() && object.frame()->view() && object.frame()->view()->paintBehavior() & PaintBehaviorRenderingSVGMask;
+}
+
 void SVGRenderSupport::intersectPaintInvalidationRectWithResources(const RenderObject* renderer, FloatRect& paintInvalidationRect)
 {
     ASSERT(renderer);