Allow PeerConnection to be garbage collected after close().

Source/modules/mediastream/RTCVoidRequestImpl.h

Index: Source/modules/mediastream/RTCVoidRequestImpl.h
diff --git a/Source/modules/mediastream/RTCVoidRequestImpl.h b/Source/modules/mediastream/RTCVoidRequestImpl.h
index afea015c0070f6cd6570c893becfd034df746610..232b19c0ae84650b6d70bfb3118b5c5987084659 100644
--- a/Source/modules/mediastream/RTCVoidRequestImpl.h
+++ b/Source/modules/mediastream/RTCVoidRequestImpl.h
@@ -37,11 +37,12 @@
 namespace WebCore {
 
 class RTCErrorCallback;
+class RTCPeerConnection;
 class VoidCallback;
 
 class RTCVoidRequestImpl FINAL : public RTCVoidRequest, public ActiveDOMObject {
 public:
-    static PassRefPtr<RTCVoidRequestImpl> create(ExecutionContext*, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>);
+    static PassRefPtr<RTCVoidRequestImpl> create(ExecutionContext*, RTCPeerConnection*, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>);
     virtual ~RTCVoidRequestImpl();
 
     // RTCVoidRequest
@@ -52,12 +53,15 @@ public:
     virtual void stop() OVERRIDE;
 
 private:
-    RTCVoidRequestImpl(ExecutionContext*, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>);
+    RTCVoidRequestImpl(ExecutionContext*, RTCPeerConnection*, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>);
 
     void clear();
 
     OwnPtr<VoidCallback> m_successCallback;
     OwnPtr<RTCErrorCallback> m_errorCallback;
+
+    // TODO - BEFORE COMMIT: Raw pointer OK?
+    RTCPeerConnection* m_requester;
 };
 
 } // namespace WebCore