Allow PeerConnection to be garbage collected after close().

Source/modules/mediastream/RTCStatsRequestImpl.h

Index: Source/modules/mediastream/RTCStatsRequestImpl.h
diff --git a/Source/modules/mediastream/RTCStatsRequestImpl.h b/Source/modules/mediastream/RTCStatsRequestImpl.h
index eb3b08e8c7c5f59c81b89141c004d1b3ffec4083..588db015feb3b6a284578d8de307dfb33c338eec 100644
--- a/Source/modules/mediastream/RTCStatsRequestImpl.h
+++ b/Source/modules/mediastream/RTCStatsRequestImpl.h
@@ -35,11 +35,12 @@
 namespace WebCore {
 
 class MediaStreamTrack;
+class RTCPeerConnection;
 class RTCStatsCallback;
 
 class RTCStatsRequestImpl FINAL : public RTCStatsRequest, public ActiveDOMObject {
 public:
-    static PassRefPtr<RTCStatsRequestImpl> create(ExecutionContext*, PassOwnPtr<RTCStatsCallback>, PassRefPtr<MediaStreamTrack>);
+    static PassRefPtr<RTCStatsRequestImpl> create(ExecutionContext*, RTCPeerConnection*, PassOwnPtr<RTCStatsCallback>, PassRefPtr<MediaStreamTrack>);
     virtual ~RTCStatsRequestImpl();
 
     virtual PassRefPtrWillBeRawPtr<RTCStatsResponseBase> createResponse() OVERRIDE;
@@ -52,12 +53,15 @@ public:
     virtual void stop() OVERRIDE;
 
 private:
-    RTCStatsRequestImpl(ExecutionContext*, PassOwnPtr<RTCStatsCallback>, PassRefPtr<MediaStreamTrack>);
+    RTCStatsRequestImpl(ExecutionContext*, RTCPeerConnection*, PassOwnPtr<RTCStatsCallback>, PassRefPtr<MediaStreamTrack>);
 
     void clear();
 
     OwnPtr<RTCStatsCallback> m_successCallback;
     RefPtr<MediaStreamComponent> m_component;
+
+    // TODO - BEFORE COMMIT: Raw pointer OK?
+    RTCPeerConnection* m_requester;
 };
 
 } // namespace WebCore