Oilpan: move editing objects to the heap.

Source/core/editing/SplitTextNodeContainingElementCommand.h

Index: Source/core/editing/SplitTextNodeContainingElementCommand.h
diff --git a/Source/core/editing/SplitTextNodeContainingElementCommand.h b/Source/core/editing/SplitTextNodeContainingElementCommand.h
index c4ffb1c9226079879ca0fac0e7d6a1eac2a8e3da..072ed1946cce93982dfd0f159eda8b5f9e9e849c 100644
--- a/Source/core/editing/SplitTextNodeContainingElementCommand.h
+++ b/Source/core/editing/SplitTextNodeContainingElementCommand.h
@@ -32,17 +32,19 @@ namespace WebCore {
 
 class SplitTextNodeContainingElementCommand FINAL : public CompositeEditCommand {
 public:
-    static PassRefPtr<SplitTextNodeContainingElementCommand> create(PassRefPtrWillBeRawPtr<Text> node, int offset)
+    static PassRefPtrWillBeRawPtr<SplitTextNodeContainingElementCommand> create(PassRefPtrWillBeRawPtr<Text> node, int offset)
     {
-        return adoptRef(new SplitTextNodeContainingElementCommand(node, offset));
+        return adoptRefWillBeNoop(new SplitTextNodeContainingElementCommand(node, offset));
     }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     SplitTextNodeContainingElementCommand(PassRefPtrWillBeRawPtr<Text>, int offset);
 
     virtual void doApply() OVERRIDE;
 
-    RefPtrWillBePersistent<Text> m_text;
+    RefPtrWillBeMember<Text> m_text;
     int m_offset;
 };