Implement client-side video stream support for WebRTC-based protocol.

remoting/protocol/webrtc_transport.h

 // Copyright 2015 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 REMOTING_PROTOCOL_WEBRTC_TRANSPORT_H_
 #define REMOTING_PROTOCOL_WEBRTC_TRANSPORT_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 27 matching lines @@
     //   1. When the first data channel is created, if it wasn't created by this
     //      event handler.
     //   2. Whenever a media stream is added or removed.
     virtual void OnWebrtcTransportConnecting() = 0;
 
     // Called when the transport is connected.
     virtual void OnWebrtcTransportConnected() = 0;
 
     // Called when there is an error connecting the session.
     virtual void OnWebrtcTransportError(ErrorCode error) = 0;
+
+    // Called when an incoming media stream is added or removed.
+    virtual void OnWebrtcTransportMediaStreamAdded(
+        scoped_refptr<webrtc::MediaStreamInterface> stream) = 0;
+    virtual void OnWebrtcTransportMediaStreamRemoved(
+        scoped_refptr<webrtc::MediaStreamInterface> stream) = 0;
   };
 
   WebrtcTransport(rtc::Thread* worker_thread,
                   scoped_refptr<TransportContext> transport_context,
                   EventHandler* event_handler);
   ~WebrtcTransport() override;
 
   webrtc::PeerConnectionInterface* peer_connection() {
     return peer_connection_;
   }
@@ skipping 60 matching lines @@
 
   bool negotiation_pending_ = false;
 
   bool connected_ = false;
 
   scoped_ptr<buzz::XmlElement> pending_transport_info_message_;
   base::OneShotTimer transport_info_timer_;
 
   ScopedVector<webrtc::IceCandidateInterface> pending_incoming_candidates_;
 
-  std::list<rtc::scoped_refptr<webrtc::MediaStreamInterface>>
-      unclaimed_streams_;
-
   WebrtcDataStreamAdapter outgoing_data_stream_adapter_;
   WebrtcDataStreamAdapter incoming_data_stream_adapter_;
 
   base::WeakPtrFactory<WebrtcTransport> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebrtcTransport);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_WEBRTC_TRANSPORT_H_