MediaStream API: Changing the device enumeration to be async

Source/core/platform/mediastream/MediaStreamCenter.cpp

Index: Source/core/platform/mediastream/MediaStreamCenter.cpp
diff --git a/Source/core/platform/mediastream/MediaStreamCenter.cpp b/Source/core/platform/mediastream/MediaStreamCenter.cpp
index 2b608f313909bdc43646b9bfef9d656ea63ca3b4..09c03f6435fcba3b044b2a75fb29af8db852f1c3 100644
--- a/Source/core/platform/mediastream/MediaStreamCenter.cpp
+++ b/Source/core/platform/mediastream/MediaStreamCenter.cpp
@@ -40,6 +40,7 @@
 #include "public/platform/WebMediaStreamCenter.h"
 #include "public/platform/WebMediaStreamSourcesRequest.h"
 #include "public/platform/WebMediaStreamTrack.h"
+#include "public/platform/WebMediaStreamTrackSourcesRequest.h"
 #include "wtf/MainThread.h"
 #include "wtf/PassOwnPtr.h"
 
@@ -71,9 +72,9 @@ void MediaStreamCenter::queryMediaStreamSources(PassRefPtr<MediaStreamSourcesQue
     }
 }
 
-bool MediaStreamCenter::getSourceInfos(const String& url, WebKit::WebVector<WebKit::WebSourceInfo>& sourceInfos)
+bool MediaStreamCenter::getMediaStreamTrackSources(PassRefPtr<MediaStreamTrackSourcesRequest> request)
 {
-    return m_private && m_private->getSourceInfos(url, sourceInfos);
+    return m_private && m_private->getMediaStreamTrackSources(request);
 }
 
 void MediaStreamCenter::didSetMediaStreamTrackEnabled(MediaStreamDescriptor* stream,  MediaStreamComponent* component)