Oilpan: move SVG property hierarchy to the heap.

Source/core/css/resolver/ElementStyleResources.h

Index: Source/core/css/resolver/ElementStyleResources.h
diff --git a/Source/core/css/resolver/ElementStyleResources.h b/Source/core/css/resolver/ElementStyleResources.h
index 2662de0b88a15975ad386d3699e6ff6d93f8c437..a2dd80364c003a29d502fec1b2ca68fcfa8734f0 100644
--- a/Source/core/css/resolver/ElementStyleResources.h
+++ b/Source/core/css/resolver/ElementStyleResources.h
@@ -41,14 +41,14 @@ class FilterOperation;
 class StyleImage;
 class TextLinkColors;
 
-typedef WillBeHeapHashMap<FilterOperation*, RefPtrWillBeMember<CSSSVGDocumentValue> > PendingSVGDocumentMap;
+typedef WillBeHeapHashMap<RawPtrWillBeMember<FilterOperation>, RefPtrWillBeMember<CSSSVGDocumentValue> > PendingSVGDocumentMap;
 typedef WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<CSSValue> > PendingImagePropertyMap;
 
 // Holds information about resources, requested by stylesheets.
 // Lifetime: per-element style resolve.
 class ElementStyleResources {
-STACK_ALLOCATED();
-WTF_MAKE_NONCOPYABLE(ElementStyleResources);
+    STACK_ALLOCATED();
+    WTF_MAKE_NONCOPYABLE(ElementStyleResources);
 public:
     ElementStyleResources();