Oilpan: move SVG property hierarchy to the heap.

Source/platform/graphics/filters/FEDisplacementMap.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 22 matching lines @@
 namespace blink {
 
 FEDisplacementMap::FEDisplacementMap(Filter* filter, ChannelSelectorType xChannelSelector, ChannelSelectorType yChannelSelector, float scale)
     : FilterEffect(filter)
     , m_xChannelSelector(xChannelSelector)
     , m_yChannelSelector(yChannelSelector)
     , m_scale(scale)
 {
 }
 
-PassRefPtr<FEDisplacementMap> FEDisplacementMap::create(Filter* filter, ChannelSelectorType xChannelSelector,
+PassRefPtrWillBeRawPtr<FEDisplacementMap> FEDisplacementMap::create(Filter* filter, ChannelSelectorType xChannelSelector,
     ChannelSelectorType yChannelSelector, float scale)
 {
-    return adoptRef(new FEDisplacementMap(filter, xChannelSelector, yChannelSelector, scale));
+    return adoptRefWillBeNoop(new FEDisplacementMap(filter, xChannelSelector, yChannelSelector, scale));
 }
 
 FloatRect FEDisplacementMap::mapPaintRect(const FloatRect& rect, bool)
 {
     FloatRect result = rect;
     result.inflateX(filter()->applyHorizontalScale(m_scale / 2));
     result.inflateY(filter()->applyVerticalScale(m_scale / 2));
     return result;
 }
 
@@ skipping 121 matching lines @@
     rect = mapPaintRect(rect, false);
     rect = inputEffect(0)->determineAbsolutePaintRect(rect);
     rect = mapPaintRect(rect, true);
     rect.intersect(requestedRect);
 
     addAbsolutePaintRect(rect);
     return rect;
 }
 
 } // namespace blink