Created define to switch on/off audio.

remoting/protocol/session_config.cc

Index: remoting/protocol/session_config.cc
diff --git a/remoting/protocol/session_config.cc b/remoting/protocol/session_config.cc
index cf6657ddd5bb8e44610c8f1f48ff3eb93f0b6804..139d05b5af379946966e98ef9a436e70783e2252 100644
--- a/remoting/protocol/session_config.cc
+++ b/remoting/protocol/session_config.cc
@@ -175,18 +175,16 @@ scoped_ptr<CandidateSessionConfig> CandidateSessionConfig::CreateDefault() {
       ChannelConfig(ChannelConfig::TRANSPORT_STREAM,
                     kDefaultStreamVersion,
                     ChannelConfig::CODEC_VP8));
-  result->mutable_audio_configs()->push_back(
-      ChannelConfig(ChannelConfig::TRANSPORT_NONE,
-                    kDefaultStreamVersion,
-                    ChannelConfig::CODEC_VERBATIM));
+#if defined(ENABLE_REMOTING_AUDIO)
   result->mutable_audio_configs()->push_back(
       ChannelConfig(ChannelConfig::TRANSPORT_STREAM,
                     kDefaultStreamVersion,
                     ChannelConfig::CODEC_VERBATIM));
+#endif  // defined(ENABLE_REMOTING_AUDIO)
   result->mutable_audio_configs()->push_back(
-      ChannelConfig(ChannelConfig::TRANSPORT_STREAM,
+      ChannelConfig(ChannelConfig::TRANSPORT_NONE,
                     kDefaultStreamVersion,
-                    ChannelConfig::CODEC_VORBIS));
+                    ChannelConfig::CODEC_VERBATIM));
   return result.Pass();
 }