Add RtcpMuxPolicy to PeerConnection.

Source/platform/exported/WebRTCConfiguration.cpp

 /*
  * 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 112 matching lines @@
     case RTCBundlePolicyMaxCompat:
         return WebRTCBundlePolicyMaxCompat;
     case RTCBundlePolicyMaxBundle:
         return WebRTCBundlePolicyMaxBundle;
     default:
         ASSERT_NOT_REACHED();
     }
     return WebRTCBundlePolicyBalanced;
 }
 
+WebRTCRtcpMuxPolicy WebRTCConfiguration::rtcpMuxPolicy() const
+{
+    ASSERT(!isNull());
+    switch (m_private->rtcpMuxPolicy()) {
+    case RTCRtcpMuxPolicyNegotiate:
+        return WebRTCRtcpMuxPolicyNegotiate;
+    case RTCRtcpMuxPolicyRequire:
+        return WebRTCRtcpMuxPolicyRequire;
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return WebRTCRtcpMuxPolicyNegotiate;
+}
+
 } // namespace blink