MediaStream API: Changing the device enumeration to be async

Source/modules/mediastream/MediaStreamTrackSourcesCallback.h

Index: Source/modules/mediastream/MediaStreamTrackSourcesCallback.h
diff --git a/Source/core/platform/mediastream/RTCDTMFSenderHandlerClient.h b/Source/modules/mediastream/MediaStreamTrackSourcesCallback.h
similarity index 76%
copy from Source/core/platform/mediastream/RTCDTMFSenderHandlerClient.h
copy to Source/modules/mediastream/MediaStreamTrackSourcesCallback.h
index 3a3f18b2f94980a346ef719d39ca19e7aa101bee..585031f656748254f53921e1b660f333fbe9b947 100644
--- a/Source/core/platform/mediastream/RTCDTMFSenderHandlerClient.h
+++ b/Source/modules/mediastream/MediaStreamTrackSourcesCallback.h
@@ -23,20 +23,22 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef RTCDTMFSenderHandlerClient_h
-#define RTCDTMFSenderHandlerClient_h
+#ifndef MediaStreamTrackSourcesCallback_h
+#define MediaStreamTrackSourcesCallback_h
 
-#include "wtf/text/WTFString.h"
+#include "modules/mediastream/SourceInfo.h"
+#include "wtf/RefCounted.h"
 
 namespace WebCore {
 
-class RTCDTMFSenderHandlerClient {
-public:
-    virtual ~RTCDTMFSenderHandlerClient() { }
+class MediaStreamTrackSourcesResponse;
 
-    virtual void didPlayTone(const String&) = 0;
+class MediaStreamTrackSourcesCallback : public RefCounted<MediaStreamTrackSourcesCallback> {
+public:
+    virtual ~MediaStreamTrackSourcesCallback() { }
+    virtual bool handleEvent(SourceInfoVector) = 0;
 };
 
 } // namespace WebCore
 
-#endif // RTCDTMFSenderHandlerClient_h
+#endif // MediaStreamTrackSourcesCallback_h