Adding owner access from WebMediaStreamTrack::ExtraData

public/platform/WebMediaStreamTrack.h

 /*
  * Copyright (C) 2013 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 26 matching lines @@
 class WebAudioSourceProvider;
 class WebMediaStream;
 class WebMediaStreamSource;
 class WebString;
 
 class WebMediaStreamTrack {
 public:
     class ExtraData {
     public:
         virtual ~ExtraData() { }
+        BLINK_PLATFORM_EXPORT WebMediaStreamTrack owner();
+
+#if INSIDE_BLINK
+        BLINK_PLATFORM_EXPORT void setOwner(WebCore::MediaStreamComponent*);
+#endif
+
+    private:
+        WebCore::MediaStreamComponent* m_owner;
     };
 
     WebMediaStreamTrack() { }
     WebMediaStreamTrack(const WebMediaStreamTrack& other) { assign(other); }
     ~WebMediaStreamTrack() { reset(); }
 
     WebMediaStreamTrack& operator=(const WebMediaStreamTrack& other)
     {
         assign(other);
         return *this;
@@ skipping 32 matching lines @@
     operator WebCore::MediaStreamComponent*() const;
 #endif
 
 private:
     WebPrivatePtr<WebCore::MediaStreamComponent> m_private;
 };
 
 } // namespace blink
 
 #endif // WebMediaStreamTrack_h