dom: Add WebRTC transceiver stubs.

components/script/dom/webidls/RTCRtpSender.webidl

@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// https://w3c.github.io/webrtc-pc/#dom-rtcrtpsender
+
+dictionary RTCRtpHeaderExtensionParameters {
+  required DOMString uri;
+  required unsigned short id;
+  boolean encrypted = false;
+};
+
+dictionary RTCRtcpParameters {
+  DOMString cname;
+  boolean reducedSize;
+};
+
+dictionary RTCRtpCodecParameters {
+  required octet payloadType;
+  required DOMString mimeType;
+  required unsigned long clockRate;
+  unsigned short channels;
+  DOMString sdpFmtpLine;
+};
+
+dictionary RTCRtpParameters {
+  required sequence<RTCRtpHeaderExtensionParameters> headerExtensions;
+  required RTCRtcpParameters rtcp;
+  required sequence<RTCRtpCodecParameters> codecs;
+};
+
+dictionary RTCRtpSendParameters : RTCRtpParameters {
+  required DOMString transactionId;
+  required sequence<RTCRtpEncodingParameters> encodings;
+};
+
+[Exposed=Window, Pref="dom.webrtc.transceiver.enabled"]
+interface RTCRtpSender {
+  //readonly attribute MediaStreamTrack? track;
+  //readonly attribute RTCDtlsTransport? transport;
+  //static RTCRtpCapabilities? getCapabilities(DOMString kind);
+  Promise<void> setParameters(RTCRtpSendParameters parameters);
+  RTCRtpSendParameters getParameters();
+  //Promise<void> replaceTrack(MediaStreamTrack? withTrack);
+  //void setStreams(MediaStream... streams);
+  //Promise<RTCStatsReport> getStats();
+};