Add audio support in WebrtcConnectionToHost, audio unittest

remoting/protocol/session_config.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/protocol/session_config.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 131 matching lines @@
   result->event_config_ = candidate_config->event_configs().front();
   result->video_config_ = candidate_config->video_configs().front();
   result->audio_config_ = candidate_config->audio_configs().front();
 
   return result;
 }
 
 // static
 std::unique_ptr<SessionConfig> SessionConfig::ForTest() {
   std::unique_ptr<SessionConfig> result(new SessionConfig(Protocol::ICE));
-  result->control_config_ = ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM,
-                                          kControlStreamVersion,
-                                          ChannelConfig::CODEC_UNDEFINED);
-  result->event_config_ = ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM,
-                                        kDefaultStreamVersion,
-                                        ChannelConfig::CODEC_UNDEFINED);
-  result->video_config_ = ChannelConfig(ChannelConfig::TRANSPORT_STREAM,
-                                        kDefaultStreamVersion,
-                                        ChannelConfig::CODEC_VP8);
-  result->audio_config_ = ChannelConfig(ChannelConfig::TRANSPORT_NONE,
-                                        kDefaultStreamVersion,
-                                        ChannelConfig::CODEC_UNDEFINED);
+  result->control_config_ =
+      ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM, kControlStreamVersion,
+                    ChannelConfig::CODEC_UNDEFINED);
+  result->event_config_ =
+      ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM, kDefaultStreamVersion,
+                    ChannelConfig::CODEC_UNDEFINED);
+  result->video_config_ =
+      ChannelConfig(ChannelConfig::TRANSPORT_STREAM, kDefaultStreamVersion,
+                    ChannelConfig::CODEC_VP8);
+  result->audio_config_ =
+      ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM, kDefaultStreamVersion,
+                    ChannelConfig::CODEC_OPUS);
   return result;
 }
 
 std::unique_ptr<SessionConfig> SessionConfig::ForTestWithAudio() {
   std::unique_ptr<SessionConfig> result(ForTest());
   result->audio_config_ = ChannelConfig(ChannelConfig::TRANSPORT_STREAM,
                                         kDefaultStreamVersion,
                                         ChannelConfig::CODEC_OPUS);
   return result;
 }
@@ skipping 132 matching lines @@
 void CandidateSessionConfig::PreferTransport(
     ChannelConfig::TransportType transport) {
   UpdateConfigListToPreferTransport(&control_configs_, transport);
   UpdateConfigListToPreferTransport(&event_configs_, transport);
   UpdateConfigListToPreferTransport(&video_configs_, transport);
   UpdateConfigListToPreferTransport(&audio_configs_, transport);
 }
 
 }  // namespace protocol
 }  // namespace remoting