Oilpan: move SVG property hierarchy to the heap.

Source/core/rendering/RenderLayerFilterInfo.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. 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 78 matching lines @@
 RenderLayerFilterInfo::RenderLayerFilterInfo(RenderLayer* layer)
     : m_layer(layer)
 {
 }
 
 RenderLayerFilterInfo::~RenderLayerFilterInfo()
 {
     removeReferenceFilterClients();
 }
 
-void RenderLayerFilterInfo::setRenderer(PassRefPtr<FilterEffectRenderer> renderer)
+void RenderLayerFilterInfo::setRenderer(PassRefPtrWillBeRawPtr<FilterEffectRenderer> renderer)
 {
     m_renderer = renderer;
 }
 
 void RenderLayerFilterInfo::notifyFinished(Resource*)
 {
     RenderObject* renderer = m_layer->renderer();
     // FIXME: This caller of scheduleSVGFilterLayerUpdateHack() is not correct. It's using the layer update
     // system to trigger a RenderLayer to go through the filter updating logic, but that might not
     // even happen if this element is style sharing and RenderObject::setStyle() returns early.
     // Filters need to find a better way to hook into the system.
     toElement(renderer->node())->scheduleSVGFilterLayerUpdateHack();
     renderer->setShouldDoFullPaintInvalidation();
 }
 
 void RenderLayerFilterInfo::updateReferenceFilterClients(const FilterOperations& operations)
 {
     removeReferenceFilterClients();
     for (size_t i = 0; i < operations.size(); ++i) {
-        RefPtr<FilterOperation> filterOperation = operations.operations().at(i);
+        RefPtrWillBeRawPtr<FilterOperation> filterOperation = operations.operations().at(i);
         if (filterOperation->type() != FilterOperation::REFERENCE)
             continue;
         ReferenceFilterOperation* referenceFilterOperation = toReferenceFilterOperation(filterOperation.get());
         DocumentResourceReference* documentReference = ReferenceFilterBuilder::documentResourceReference(referenceFilterOperation);
         DocumentResource* cachedSVGDocument = documentReference ? documentReference->document() : 0;
 
         if (cachedSVGDocument) {
             // Reference is external; wait for notifyFinished().
             cachedSVGDocument->addClient(this);
             m_externalSVGReferences.append(cachedSVGDocument);
@@ skipping 22 matching lines @@
         if (filter->renderer())
             toRenderSVGResourceContainer(filter->renderer())->removeClientRenderLayer(m_layer);
         else
             toSVGFilterElement(filter)->removeClient(m_layer->renderer()->node());
     }
     m_internalSVGReferences.clear();
 }
 
 } // namespace blink