Change the default rtcp mux policy from negotiate to require.

components/test_runner/mock_webrtc_peer_connection_handler.h

 // Copyright 2014 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 COMPONENTS_TEST_RUNNER_MOCK_WEBRTC_PEER_CONNECTION_HANDLER_H_
 #define COMPONENTS_TEST_RUNNER_MOCK_WEBRTC_PEER_CONNECTION_HANDLER_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 34 matching lines @@
   void setLocalDescription(
       const blink::WebRTCVoidRequest& request,
       const blink::WebRTCSessionDescription& local_description) override;
   void setRemoteDescription(
       const blink::WebRTCVoidRequest& request,
       const blink::WebRTCSessionDescription& remote_description) override;
   blink::WebRTCSessionDescription localDescription() override;
   blink::WebRTCSessionDescription remoteDescription() override;
   bool setConfiguration(
       const blink::WebRTCConfiguration& configuration) override;
-  void logSelectedRtcpMuxPolicy(blink::RtcpMuxPolicy) override;
   bool addICECandidate(const blink::WebRTCICECandidate& ice_candidate) override;
   bool addICECandidate(const blink::WebRTCVoidRequest& request,
                        const blink::WebRTCICECandidate& ice_candidate) override;
   bool addStream(const blink::WebMediaStream& stream,
                  const blink::WebMediaConstraints& constraints) override;
   void removeStream(const blink::WebMediaStream& stream) override;
   void getStats(const blink::WebRTCStatsRequest& request) override;
   void getStats(std::unique_ptr<blink::WebRTCStatsReportCallback>) override;
   blink::WebRTCDataChannelHandler* createDataChannel(
       const blink::WebString& label,
@@ skipping 33 matching lines @@
   StreamMap remote_streams_;
 
   base::WeakPtrFactory<MockWebRTCPeerConnectionHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MockWebRTCPeerConnectionHandler);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_MOCK_WEBRTC_PEER_CONNECTION_HANDLER_H_