Move Frame to the Oilpan heap.

Source/core/frame/FrameOwner.h

Index: Source/core/frame/FrameOwner.h
diff --git a/Source/core/frame/FrameOwner.h b/Source/core/frame/FrameOwner.h
index 1f19f7d515746772c07f8d1af80468ee1aaa019c..f87a53dc25d0b7f6aa6a6936f85dcc94c848e7bf 100644
--- a/Source/core/frame/FrameOwner.h
+++ b/Source/core/frame/FrameOwner.h
@@ -6,12 +6,14 @@
 #define FrameOwner_h
 
 #include "core/dom/SandboxFlags.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
-class FrameOwner {
+class FrameOwner : public WillBeGarbageCollectedMixin {
 public:
     virtual ~FrameOwner() { }
+    virtual void trace(Visitor*) { }
 
     virtual bool isLocal() const = 0;