Move Frame to the Oilpan heap.

Source/core/editing/InputMethodController.h

 /*
  * Copyright (C) 2006, 2007, 2008 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 10 matching lines @@
  * 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 InputMethodController_h
 #define InputMethodController_h
 
 #include "core/editing/CompositionUnderline.h"
 #include "core/editing/PlainTextRange.h"
+#include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class Editor;
 class EditorClient;
 class LocalFrame;
 class Range;
 class Text;
 
-class InputMethodController {
+class InputMethodController FINAL : public NoBaseWillBeGarbageCollectedFinalized<InputMethodController> {
     WTF_MAKE_NONCOPYABLE(InputMethodController);
 public:
     enum ConfirmCompositionBehavior {
         DoNotKeepSelection,
         KeepSelection,
     };
 
-    static PassOwnPtr<InputMethodController> create(LocalFrame&);
+    static PassOwnPtrWillBeRawPtr<InputMethodController> create(LocalFrame&);
     ~InputMethodController();
+    void trace(Visitor*);
 
     // international text input composition
     bool hasComposition() const;
     void setComposition(const String&, const Vector<CompositionUnderline>&, unsigned selectionStart, unsigned selectionEnd);
     void setCompositionFromExistingText(const Vector<CompositionUnderline>&, unsigned compositionStart, unsigned compositionEnd);
     // Inserts the text that is being composed as a regular text and returns true
     // if composition exists.
     bool confirmComposition();
     // Inserts the given text string in the place of the existing composition
     // and returns true.
@@ skipping 26 matching lines @@
         WTF_MAKE_NONCOPYABLE(SelectionOffsetsScope);
     public:
         SelectionOffsetsScope(InputMethodController*);
         ~SelectionOffsetsScope();
     private:
         InputMethodController* m_inputMethodController;
         const PlainTextRange m_offsets;
     };
     friend class SelectionOffsetsScope;
 
-    LocalFrame& m_frame;
-    RefPtrWillBePersistent<Text> m_compositionNode;
+    RawPtrWillBeMember<LocalFrame> m_frame;
+    RefPtrWillBeMember<Text> m_compositionNode;
     // We don't use PlainTextRange which is immutable, for composition range.
     unsigned m_compositionStart;
     unsigned m_compositionEnd;
     // startOffset and endOffset of CompositionUnderline are based on
     // m_compositionNode.
     Vector<CompositionUnderline> m_customCompositionUnderlines;
 
     explicit InputMethodController(LocalFrame&);
+
     Editor& editor() const;
+    LocalFrame& frame() const { return *m_frame; }
+
     bool insertTextForConfirmedComposition(const String& text);
     void selectComposition() const;
     enum FinishCompositionMode { ConfirmComposition, CancelComposition };
     // Returns true if composition exists.
     bool finishComposition(const String&, FinishCompositionMode);
     bool setSelectionOffsets(const PlainTextRange&);
 };
 
 } // namespace blink
 
 #endif // InputMethodController_h