Add signaling to support ICE renomination.

webrtc/api/test/fakeconstraints.h

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 88 matching lines @@
   }
 
   void SetOptionalVAD(bool enable) {
     AddOptional(MediaConstraintsInterface::kVoiceActivityDetection, enable);
   }
 
   void SetAllowDtlsSctpDataChannels() {
     SetMandatory(MediaConstraintsInterface::kEnableDtlsSrtp, true);
   }
 
+  void SetOptionalIceRenomination(bool enable) {
+    AddOptional(MediaConstraintsInterface::kIceRenomination, enable);
+  }
+
  private:
   Constraints mandatory_;
   Constraints optional_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_TEST_FAKECONSTRAINTS_H_