MediaStreamTrack: Add echo-cancellation and device-id to getSettings

third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp

Index: third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp
diff --git a/third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp b/third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp
index 0375fbdcec92c91862528b5ce3f637ac1ddfe02d..f6a6dc2736eb1995ed8a68d4601821c3bc1d3c6d 100644
--- a/third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp
+++ b/third_party/WebKit/Source/platform/mediastream/MediaStreamSource.cpp
@@ -90,6 +90,11 @@ bool MediaStreamSource::removeAudioConsumer(
   return true;
 }
 
+void MediaStreamSource::getSettings(WebMediaStreamTrack::Settings& settings) {
+  settings.deviceId = id();
+  m_extraData->getSettings(settings);
+}
+
 void MediaStreamSource::setAudioFormat(size_t numberOfChannels,
                                        float sampleRate) {
   ASSERT(m_requiresConsumer);