MediaStream API: Patch #1 of implementing navigator.getMediaDevices

public/web/WebUserMediaClient.h

Index: public/web/WebUserMediaClient.h
diff --git a/public/web/WebUserMediaClient.h b/public/web/WebUserMediaClient.h
index 877fc7bbaec8fe1e8db12a70e5eb356f08b84807..54fa97b23542e5ae6517ebfed7766a8d754b4b03 100644
--- a/public/web/WebUserMediaClient.h
+++ b/public/web/WebUserMediaClient.h
@@ -33,7 +33,7 @@
 
 namespace blink {
 
-class WebMediaStreamSource;
+class WebMediaDevicesRequest;
 class WebUserMediaRequest;
 template <typename T> class WebVector;
 
@@ -43,6 +43,8 @@ public:
 
     virtual void requestUserMedia(const WebUserMediaRequest&) = 0;
     virtual void cancelUserMediaRequest(const WebUserMediaRequest&) = 0;
+    virtual void requestMediaDevices(const WebMediaDevicesRequest&) { }
+    virtual void cancelMediaDevicesRequest(const WebMediaDevicesRequest&) { }
 };
 
 } // namespace blink