Change 'mute' parameter of MediaChannel::SetAudioSend()/SetVideoSend() to 'enable'.

talk/session/media/channelmanager.cc

Index: talk/session/media/channelmanager.cc
diff --git a/talk/session/media/channelmanager.cc b/talk/session/media/channelmanager.cc
index 1d86241e9d0a67953f6fa91c9242060d7158f99f..5930dfd75aa3af16db2fc74fbcd3e52bf8442da4 100644
--- a/talk/session/media/channelmanager.cc
+++ b/talk/session/media/channelmanager.cc
@@ -625,15 +625,6 @@ void ChannelManager::OnMessage(rtc::Message* message) {
   }
 }
 
-
-static void GetDeviceNames(const std::vector<Device>& devs,
-                           std::vector<std::string>* names) {
-  names->clear();
-  for (size_t i = 0; i < devs.size(); ++i) {
-    names->push_back(devs[i].name);
-  }
-}
-
 bool ChannelManager::StartAecDump(rtc::PlatformFile file) {
   return worker_thread_->Invoke<bool>(
       Bind(&MediaEngineInterface::StartAecDump, media_engine_.get(), file));