Revert "Remove MediaStreamTrack.getSources()."

third_party/WebKit/Source/web/UserMediaClientImpl.cpp

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 12 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "web/UserMediaClientImpl.h"
 
+#include "public/platform/WebMediaStreamTrackSourcesRequest.h"
 #include "public/web/WebFrameClient.h"
 #include "public/web/WebMediaDeviceChangeObserver.h"
 #include "public/web/WebMediaDevicesRequest.h"
 #include "public/web/WebUserMediaClient.h"
 #include "public/web/WebUserMediaRequest.h"
 #include "web/WebLocalFrameImpl.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 UserMediaClientImpl::UserMediaClientImpl(WebUserMediaClient* client)
     : m_client(client) {}
 
 void UserMediaClientImpl::requestUserMedia(UserMediaRequest* request) {
   if (m_client)
     m_client->requestUserMedia(request);
 }
 
 void UserMediaClientImpl::cancelUserMediaRequest(UserMediaRequest* request) {
   if (m_client)
     m_client->cancelUserMediaRequest(WebUserMediaRequest(request));
 }
 
 void UserMediaClientImpl::requestMediaDevices(MediaDevicesRequest* request) {
   if (m_client)
     m_client->requestMediaDevices(request);
 }
 
+void UserMediaClientImpl::requestSources(
+    MediaStreamTrackSourcesRequest* request) {
+  if (m_client)
+    m_client->requestSources(request);
+}
+
 void UserMediaClientImpl::setMediaDeviceChangeObserver(MediaDevices* observer) {
   if (m_client)
     m_client->setMediaDeviceChangeObserver(
         WebMediaDeviceChangeObserver(observer));
 }
 
 }  // namespace blink