Oilpan: move custom element objects to the heap.

Source/core/dom/custom/CustomElementMicrotaskImportStep.h

 /*
  * Copyright (C) 2013 Google 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
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef CustomElementMicrotaskImportStep_h
 #define CustomElementMicrotaskImportStep_h
 
 #include "core/dom/custom/CustomElementMicrotaskStep.h"
+#include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/WeakPtr.h"
 
 namespace WebCore {
 
 class CustomElementMicrotaskQueue;
 class HTMLImportChild;
 
 // Processes the Custom Elements in an HTML Import. This is a
 // composite step which processes the Custom Elements created by
 // parsing the import, and its sub-imports.
 //
 // This step blocks further Custom Element microtask processing if its
 // import isn't "ready" (finished parsing and running script.)
 class CustomElementMicrotaskImportStep : public CustomElementMicrotaskStep {
     WTF_MAKE_NONCOPYABLE(CustomElementMicrotaskImportStep);
 public:
-    static PassOwnPtr<CustomElementMicrotaskImportStep> create(HTMLImportChild*);
+    static PassOwnPtrWillBeRawPtr<CustomElementMicrotaskImportStep> create(HTMLImportChild*);
     virtual ~CustomElementMicrotaskImportStep();
 
     // API for HTML Imports
     void parentWasChanged();
     void importDidFinishLoading();
     WeakPtr<CustomElementMicrotaskImportStep> weakPtr() { return m_weakFactory.createWeakPtr(); }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
-    CustomElementMicrotaskImportStep(HTMLImportChild*);
+    explicit CustomElementMicrotaskImportStep(HTMLImportChild*);
 
     void didUpgradeAllCustomElements();
     bool shouldWaitForImport() const;
     bool shouldStopProcessing() const;
 
     // CustomElementMicrotaskStep
     virtual Result process() OVERRIDE FINAL;
     virtual bool needsProcessOrStop() const OVERRIDE FINAL;
 
 #if !defined(NDEBUG)
     virtual void show(unsigned indent) OVERRIDE;
 #endif
     WeakPtr<HTMLImportChild> m_import;
-    RefPtr<CustomElementMicrotaskQueue> m_queue;
+    RefPtrWillBeMember<CustomElementMicrotaskQueue> m_queue;
     WeakPtrFactory<CustomElementMicrotaskImportStep> m_weakFactory;
 };
 
 }
 
 #endif // CustomElementMicrotaskImportStep_h