Move Frame to the Oilpan heap.

Source/core/fetch/FetchContext.h

Index: Source/core/fetch/FetchContext.h
diff --git a/Source/core/fetch/FetchContext.h b/Source/core/fetch/FetchContext.h
index 99550d4b97cd23a9f1eea52c3fedea6e32aa8789..32405eb30c701a1e058e581e2d29d174312520b4 100644
--- a/Source/core/fetch/FetchContext.h
+++ b/Source/core/fetch/FetchContext.h
@@ -34,6 +34,7 @@
 #include "core/fetch/CachePolicy.h"
 #include "core/fetch/FetchInitiatorInfo.h"
 #include "core/fetch/Resource.h"
+#include "platform/heap/Handle.h"
 #include "platform/network/ResourceLoadPriority.h"
 #include "wtf/Noncopyable.h"
 
@@ -54,13 +55,14 @@ enum FetchResourceType {
     FetchSubresource
 };
 
-class FetchContext {
+class FetchContext : public NoBaseWillBeGarbageCollectedFinalized<FetchContext> {
     WTF_MAKE_NONCOPYABLE(FetchContext);
 public:
     static FetchContext& nullInstance();
 
     FetchContext() { }
     virtual ~FetchContext() { }
+    virtual void trace(Visitor*) { }
 
     virtual void reportLocalLoadFailed(const KURL&);
     virtual void addAdditionalRequestHeaders(Document*, ResourceRequest&, FetchResourceType);