Oilpan: move SVG property hierarchy to the heap.

Source/core/rendering/svg/ReferenceFilterBuilder.cpp

 /*
  * Copyright (C) 2013 Adobe Systems Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc.  All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 91 matching lines @@
     case CI_LINEARRGB:
         cs = ColorSpaceLinearRGB;
         break;
     default:
         return false;
     }
 
     return true;
 }
 
-PassRefPtr<FilterEffect> ReferenceFilterBuilder::build(Filter* parentFilter, RenderObject* renderer, FilterEffect* previousEffect, const ReferenceFilterOperation* filterOperation)
+PassRefPtrWillBeRawPtr<FilterEffect> ReferenceFilterBuilder::build(Filter* parentFilter, RenderObject* renderer, FilterEffect* previousEffect, const ReferenceFilterOperation* filterOperation)
 {
     if (!renderer)
         return nullptr;
 
     TreeScope* treeScope = &renderer->node()->treeScope();
 
     if (DocumentResourceReference* documentResourceRef = documentResourceReference(filterOperation)) {
         DocumentResource* cachedSVGDocument = documentResourceRef->document();
 
         // If we have an SVG document, this is an external reference. Otherwise
@@ skipping 17 matching lines @@
     if (!isSVGFilterElement(*filter))
         return nullptr;
 
     SVGFilterElement& filterElement = toSVGFilterElement(*filter);
 
     // FIXME: Figure out what to do with SourceAlpha. Right now, we're
     // using the alpha of the original input layer, which is obviously
     // wrong. We should probably be extracting the alpha from the
     // previousEffect, but this requires some more processing.
     // This may need a spec clarification.
-    RefPtr<SVGFilterBuilder> builder = SVGFilterBuilder::create(previousEffect, SourceAlpha::create(parentFilter));
+    RefPtrWillBeRawPtr<SVGFilterBuilder> builder = SVGFilterBuilder::create(previousEffect, SourceAlpha::create(parentFilter));
 
     ColorSpace filterColorSpace = ColorSpaceDeviceRGB;
     bool useFilterColorSpace = getSVGElementColorSpace(&filterElement, filterColorSpace);
 
     for (SVGElement* element = Traversal<SVGElement>::firstChild(filterElement); element; element = Traversal<SVGElement>::nextSibling(*element)) {
         if (!element->isFilterEffect())
             continue;
 
         SVGFilterPrimitiveStandardAttributes* effectElement = static_cast<SVGFilterPrimitiveStandardAttributes*>(element);
 
-        RefPtr<FilterEffect> effect = effectElement->build(builder.get(), parentFilter);
+        RefPtrWillBeRawPtr<FilterEffect> effect = effectElement->build(builder.get(), parentFilter);
         if (!effect)
             continue;
 
         effectElement->setStandardAttributes(effect.get());
         effect->setEffectBoundaries(SVGLengthContext::resolveRectangle<SVGFilterPrimitiveStandardAttributes>(effectElement, filterElement.primitiveUnits()->currentValue()->enumValue(), parentFilter->sourceImageRect()));
         ColorSpace colorSpace = filterColorSpace;
         if (useFilterColorSpace || getSVGElementColorSpace(effectElement, colorSpace))
             effect->setOperatingColorSpace(colorSpace);
         builder->add(AtomicString(effectElement->result()->currentValue()->value()), effect);
     }
     return builder->lastEffect();
 }
 
 } // namespace blink