[WIP]Add WebPrivateHeapPtr and use it for speech platform layer.

Source/core/speech/SpeechInputResultList.cpp

 /*
  * Copyright (C) 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/speech/SpeechInputResultList.h"
 
 #if ENABLE(INPUT_SPEECH)
 
 namespace WebCore {
 
-PassRefPtr<SpeechInputResultList> SpeechInputResultList::create(const SpeechInputResultArray& results)
+DEFINE_GC_INFO(SpeechInputResultList);
+
+PassRefPtrWillBeRawPtr<SpeechInputResultList> SpeechInputResultList::create(const SpeechInputResultArray& results)
 {
-    return adoptRef(new SpeechInputResultList(results));
+    return adoptRefWillBeNoop(new SpeechInputResultList(results));
 }
 
 SpeechInputResult* SpeechInputResultList::item(unsigned index)
 {
     return index >= m_results.size() ? 0 : m_results[index].get();
 }
 
 SpeechInputResultList::SpeechInputResultList(const SpeechInputResultArray& results)
-    : m_results(results) // Takes a copy of the array of RefPtrs.
+    : m_results(results) // Copies the incoming result array.
 {
     ScriptWrappable::init(this);
 }
 
+void SpeechInputResultList::trace(Visitor* visitor)
+{
+    visitor->trace(m_results);
+}
+
 } // namespace WebCore
 
 #endif // ENABLE(INPUT_SPEECH)