Adding owner access from WebMediaStreamTrack::ExtraData

Source/platform/mediastream/MediaStreamSource.h

Index: Source/platform/mediastream/MediaStreamSource.h
diff --git a/Source/platform/mediastream/MediaStreamSource.h b/Source/platform/mediastream/MediaStreamSource.h
index 737bc9719bad4719aa69d65fcbdc60fc3be25714..4e40f45ff02e2cbf3e07799ff75f4f949e2e1024 100644
--- a/Source/platform/mediastream/MediaStreamSource.h
+++ b/Source/platform/mediastream/MediaStreamSource.h
@@ -52,7 +52,7 @@ public:
         virtual void sourceChangedState() = 0;
     };
 
-    class ExtraData {
+    class ExtraData  : public RefCounted<ExtraData> {
     public:
         virtual ~ExtraData() { }
     };
@@ -81,7 +81,7 @@ public:
     void removeObserver(Observer*);
 
     ExtraData* extraData() const { return m_extraData.get(); }
-    void setExtraData(ExtraData* extraData) { m_extraData = adoptPtr(extraData); }
+    void setExtraData(PassRefPtr<ExtraData> extraData) { m_extraData = extraData; }
 
     void setConstraints(PassRefPtr<MediaConstraints> constraints) { m_constraints = constraints; }
     MediaConstraints* constraints() { return m_constraints.get(); }
@@ -105,7 +105,7 @@ private:
     Vector<Observer*> m_observers;
     Mutex m_audioConsumersLock;
     Vector<RefPtr<AudioDestinationConsumer> > m_audioConsumers;
-    OwnPtr<ExtraData> m_extraData;
+    RefPtr<ExtraData> m_extraData;

[abarth-chromium, 2014/01/10 15:41:18]

I don't understand why this need to be ref counted.  What other object holds a
reference to this object?

[Tommy Widenflycht, 2014/01/13 13:08:40]

Doh, neither do I. I was just making sure all of "my" ExtraData code was the
same when all of them should be changed to OwnPtr instead. Will do that in an
follow-up CL instead.

     RefPtr<MediaConstraints> m_constraints;
 };