Oilpan: move the MediaPlayer and MediaPlayerClient objects to the heap.

Source/core/html/HTMLMediaElement.h

Index: Source/core/html/HTMLMediaElement.h
diff --git a/Source/core/html/HTMLMediaElement.h b/Source/core/html/HTMLMediaElement.h
index 3c331da4bfc147a9c39bf0596f635796007311bd..834e1813fa091b165c72903b490d7a6b95b6cf24 100644
--- a/Source/core/html/HTMLMediaElement.h
+++ b/Source/core/html/HTMLMediaElement.h
@@ -274,10 +274,6 @@ public:
     // and m_mediaController multipliers into account.
     double playerVolume() const;
 
-#if ENABLE(OILPAN)
-    bool isFinalizing() const { return m_isFinalizing; }
-#endif
-
 protected:
     HTMLMediaElement(const QualifiedName&, Document&);
     virtual ~HTMLMediaElement();
@@ -459,7 +455,7 @@ private:
     RefPtrWillBeMember<HTMLSourceElement> m_currentSourceNode;
     RefPtrWillBeMember<Node> m_nextChildNodeToConsider;
 
-    OwnPtr<MediaPlayer> m_player;
+    OwnPtrWillBeMember<MediaPlayer> m_player;
     blink::WebLayer* m_webLayer;
 
     MediaPlayer::Preload m_preload;
@@ -506,9 +502,6 @@ private:
     bool m_tracksAreReady : 1;
     bool m_haveVisibleTextTrack : 1;
     bool m_processingPreferenceChange : 1;
-#if ENABLE(OILPAN)
-    bool m_isFinalizing : 1;
-#endif
     double m_lastTextTrackUpdateTime;
 
     RefPtrWillBeMember<TextTrackList> m_textTracks;