Oilpan: make FrameLoadRequest be a stack allocated object.

Source/core/loader/FrameLoadRequest.h

 /*
  * Copyright (C) 2003, 2006, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
 #include "core/events/Event.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/loader/FrameLoaderTypes.h"
 #include "core/loader/SubstituteData.h"
 #include "platform/network/ResourceRequest.h"
 
 namespace WebCore {
 class LocalFrame;
 
 struct FrameLoadRequest {
+    STACK_ALLOCATED();
 public:
     explicit FrameLoadRequest(Document* originDocument)
         : m_originDocument(originDocument)
         , m_lockBackForwardList(false)
         , m_clientRedirect(NotClientRedirect)
         , m_shouldSendReferrer(MaybeSendReferrer)
     {
     }
 
     FrameLoadRequest(Document* originDocument, const ResourceRequest& resourceRequest)
@@ skipping 44 matching lines @@
     Event* triggeringEvent() const { return m_triggeringEvent.get(); }
     void setTriggeringEvent(PassRefPtrWillBeRawPtr<Event> triggeringEvent) { m_triggeringEvent = triggeringEvent; }
 
     FormState* formState() const { return m_formState.get(); }
     void setFormState(PassRefPtrWillBeRawPtr<FormState> formState) { m_formState = formState; }
 
     ShouldSendReferrer shouldSendReferrer() const { return m_shouldSendReferrer; }
     void setShouldSendReferrer(ShouldSendReferrer shouldSendReferrer) { m_shouldSendReferrer = shouldSendReferrer; }
 
 private:
-    RefPtrWillBePersistent<Document> m_originDocument;
+    RefPtrWillBeMember<Document> m_originDocument;
     ResourceRequest m_resourceRequest;
     AtomicString m_frameName;
     SubstituteData m_substituteData;
     bool m_lockBackForwardList;
     ClientRedirectPolicy m_clientRedirect;
-    RefPtrWillBePersistent<Event> m_triggeringEvent;
-    RefPtrWillBePersistent<FormState> m_formState;
+    RefPtrWillBeMember<Event> m_triggeringEvent;
+    RefPtrWillBeMember<FormState> m_formState;
     ShouldSendReferrer m_shouldSendReferrer;
 };
 
 }
 
 #endif // FrameLoadRequest_h