Add CreatePeerConnectionFactory overloads that take audio codec factory args

webrtc/pc/peerconnectioninterface_unittest.cc

 /*
  *  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 647 matching lines @@
 };
 
 }  // namespace
 
 // The PeerConnectionMediaConfig tests below verify that configuration
 // and constraints are propagated into the MediaConfig passed to
 // CreateMediaController. These settings are intended for MediaChannel
 // constructors, but that is not exercised by these unittest.
 class PeerConnectionFactoryForTest : public webrtc::PeerConnectionFactory {
  public:
+  PeerConnectionFactoryForTest()
+      : webrtc::PeerConnectionFactory(nullptr, nullptr) {}
+
   webrtc::MediaControllerInterface* CreateMediaController(
       const cricket::MediaConfig& config,
       webrtc::RtcEventLog* event_log) const override {
     create_media_controller_called_ = true;
     create_media_controller_config_ = config;
 
     webrtc::MediaControllerInterface* mc =
         PeerConnectionFactory::CreateMediaController(config, event_log);
     EXPECT_TRUE(mc != nullptr);
     return mc;
@@ skipping 2717 matching lines @@
   EXPECT_NE(a, f);
 
   PeerConnectionInterface::RTCConfiguration g;
   g.disable_ipv6 = true;
   EXPECT_NE(a, g);
 
   PeerConnectionInterface::RTCConfiguration h(
       PeerConnectionInterface::RTCConfigurationType::kAggressive);
   EXPECT_NE(a, h);
 }