Oilpan: move editing objects to the heap.

Source/core/editing/SimplifyMarkupCommand.h

Index: Source/core/editing/SimplifyMarkupCommand.h
diff --git a/Source/core/editing/SimplifyMarkupCommand.h b/Source/core/editing/SimplifyMarkupCommand.h
index f5196900e0ff763dd478e7ac18c3fcf9c3fe6b53..24659f3b845c5cd0a2ab76f91a8eb58d24560ed5 100644
--- a/Source/core/editing/SimplifyMarkupCommand.h
+++ b/Source/core/editing/SimplifyMarkupCommand.h
@@ -32,19 +32,21 @@ namespace WebCore {
 
 class SimplifyMarkupCommand FINAL : public CompositeEditCommand {
 public:
-    static PassRefPtr<SimplifyMarkupCommand> create(Document& document, Node* firstNode, Node* nodeAfterLast)
+    static PassRefPtrWillBeRawPtr<SimplifyMarkupCommand> create(Document& document, Node* firstNode, Node* nodeAfterLast)
     {
-        return adoptRef(new SimplifyMarkupCommand(document, firstNode, nodeAfterLast));
+        return adoptRefWillBeNoop(new SimplifyMarkupCommand(document, firstNode, nodeAfterLast));
     }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     SimplifyMarkupCommand(Document&, Node* firstNode, Node* nodeAfterLast);
 
     virtual void doApply() OVERRIDE;
-    int pruneSubsequentAncestorsToRemove(Vector<RefPtr<Node> >& nodesToRemove, size_t startNodeIndex);
+    int pruneSubsequentAncestorsToRemove(WillBeHeapVector<RefPtrWillBeMember<Node> >& nodesToRemove, size_t startNodeIndex);
 
-    RefPtr<Node> m_firstNode;
-    RefPtr<Node> m_nodeAfterLast;
+    RefPtrWillBeMember<Node> m_firstNode;
+    RefPtrWillBeMember<Node> m_nodeAfterLast;
 };
 
 } // namespace WebCore