Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/pc/ortcfactory_unittest.cc

 /*
  *  Copyright 2017 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 102 matching lines @@
         internal_transport1->SendPacket("foo", sizeof("foo"),
                                         rtc::PacketOptions(), 0);
         internal_transport2->SendPacket("foo", sizeof("foo"),
                                         rtc::PacketOptions(), 0);
         EXPECT_EQ_WAIT(1, receiver1.packets_read(), kDefaultTimeout);
         EXPECT_EQ_WAIT(1, receiver2.packets_read(), kDefaultTimeout);
       });
 }
 
 }  // namespace webrtc