Add parameter to TransportController to not change ICE role on restart.

webrtc/p2p/base/faketransportcontroller.h

 /*
  *  Copyright 2009 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 486 matching lines @@
 // This fake is unusual in that for the most part, it's implemented with the
 // real TransportController code, but with fake TransportChannels underneath.
 class FakeTransportController : public TransportController {
  public:
   FakeTransportController()
       : TransportController(rtc::Thread::Current(),
                             rtc::Thread::Current(),
                             nullptr),
         fail_create_channel_(false) {}
 
+  explicit FakeTransportController(bool redetermine_role_on_ice_restart)
+      : TransportController(rtc::Thread::Current(),
+                            rtc::Thread::Current(),
+                            nullptr,
+                            redetermine_role_on_ice_restart),
+        fail_create_channel_(false) {}
+
   explicit FakeTransportController(IceRole role)
       : TransportController(rtc::Thread::Current(),
                             rtc::Thread::Current(),
                             nullptr),
         fail_create_channel_(false) {
     SetIceRole(role);
   }
 
   explicit FakeTransportController(rtc::Thread* worker_thread)
       : TransportController(rtc::Thread::Current(), worker_thread, nullptr),
@@ skipping 79 matching lines @@
     }
   }
 
  private:
   bool fail_create_channel_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_FAKETRANSPORTCONTROLLER_H_