Add RtcpMuxPolicy to PeerConnection.

public/platform/WebRTCConfiguration.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
     WebRTCIceTransportsRelay,
     WebRTCIceTransportsAll
 };
 
 enum WebRTCBundlePolicy {
     WebRTCBundlePolicyBalanced,
     WebRTCBundlePolicyMaxCompat,
     WebRTCBundlePolicyMaxBundle
 };
 
+enum WebRTCRtcpMuxPolicy {
+    WebRTCRtcpMuxPolicyNegotiate,
+    WebRTCRtcpMuxPolicyRequire
+};
+
 class WebRTCConfiguration {
 public:
     WebRTCConfiguration() { }
     WebRTCConfiguration(const WebRTCConfiguration& other) { assign(other); }
     ~WebRTCConfiguration() { reset(); }
 
     WebRTCConfiguration& operator=(const WebRTCConfiguration& other)
     {
         assign(other);
         return *this;
     }
 
     BLINK_PLATFORM_EXPORT void assign(const WebRTCConfiguration&);
 
     BLINK_PLATFORM_EXPORT void reset();
     bool isNull() const { return m_private.isNull(); }
 
     BLINK_PLATFORM_EXPORT size_t numberOfServers() const;
     BLINK_PLATFORM_EXPORT WebRTCICEServer server(size_t index) const;
 
     BLINK_PLATFORM_EXPORT WebRTCIceTransports iceTransports() const;
 
     BLINK_PLATFORM_EXPORT WebRTCBundlePolicy bundlePolicy() const;
 
+    BLINK_PLATFORM_EXPORT WebRTCRtcpMuxPolicy rtcpMuxPolicy() const;
+
 #if INSIDE_BLINK
     BLINK_PLATFORM_EXPORT WebRTCConfiguration(RTCConfiguration*);
 #endif
 
 private:
     WebPrivatePtr<RTCConfiguration> m_private;
 };
 
 } // namespace blink
 
 #endif // WebRTCConfiguration_h