RTCRtpSender with track behind RuntimeEnabled flag

third_party/WebKit/public/platform/WebRTCRtpSender.h

Index: third_party/WebKit/public/platform/WebRTCRtpSender.h
diff --git a/third_party/WebKit/public/platform/WebRTCRtpSender.h b/third_party/WebKit/public/platform/WebRTCRtpSender.h
new file mode 100644
index 0000000000000000000000000000000000000000..9b71298557faa6a0b52d49aa663955d9b3c03a97
--- /dev/null
+++ b/third_party/WebKit/public/platform/WebRTCRtpSender.h
@@ -0,0 +1,31 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebRTCRtpSender_h
+#define WebRTCRtpSender_h
+
+#include "WebCommon.h"
+#include "WebString.h"
+
+namespace blink {
+
+class WebMediaStreamTrack;
+
+// Implementations of this interface keep the corresponding WebRTC-layer sender
+// alive through reference counting. Multiple |WebRTCRtpSender|s could reference
+// the same sender; check for equality with |id|.
+// https://w3c.github.io/webrtc-pc/#rtcrtpsender-interface
+class BLINK_PLATFORM_EXPORT WebRTCRtpSender {
+ public:
+  virtual ~WebRTCRtpSender();
+
+  // Two |WebRtcSender|s referencing the same WebRTC-layer sender have the same

[Guido Urdaneta, 2017/05/02 12:31:48]

WebRtcSender -> WebRTCRtpSender

[hbos_chromium, 2017/05/03 09:54:24]

Done.

+  // |id|.
+  virtual uintptr_t Id() const = 0;
+  virtual const WebMediaStreamTrack* Track() const = 0;
+};
+
+}  // namespace blink
+
+#endif  // WebRTCRtpSender_h