Oilpan: Prepare moving inspector script related classes to oilpan.

Source/core/inspector/ScriptCallStack.h

 /*
  * Copyright (c) 2008, 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * 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 ScriptCallStack_h
 #define ScriptCallStack_h
 
 #include "InspectorTypeBuilder.h"
 #include "core/inspector/ScriptCallFrame.h"
+#include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
-class ScriptCallStack : public RefCounted<ScriptCallStack> {
+class ScriptCallStack : public RefCountedWillBeGarbageCollectedFinalized<ScriptCallStack> {
+    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ScriptCallStack);
 public:
     static const size_t maxCallStackSizeToCapture = 200;
 
-    static PassRefPtr<ScriptCallStack> create(Vector<ScriptCallFrame>&);
-
-    ~ScriptCallStack();
+    static PassRefPtrWillBeRawPtr<ScriptCallStack> create(Vector<ScriptCallFrame>&);
 
     const ScriptCallFrame &at(size_t) const;
     size_t size() const;
 
     PassRefPtr<TypeBuilder::Array<TypeBuilder::Console::CallFrame> > buildInspectorArray() const;
 
+    void trace(Visitor*) { }
+
 private:
-    ScriptCallStack(Vector<ScriptCallFrame>&);
+    explicit ScriptCallStack(Vector<ScriptCallFrame>&);
 
     Vector<ScriptCallFrame> m_frames;
 };
 
 } // namespace WebCore
 
 #endif // ScriptCallStack_h