Make ~webrtc::AudioSendStream public, and s/config()/GetConfig(), as well as make public.

webrtc/audio/audio_receive_stream.cc

Index: webrtc/audio/audio_receive_stream.cc
diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
index d9829c75f0b1c09753e5f242834d94daae4d16ac..be5c18a57c4068a6b8f0da58c6eeb26489c7027e 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -294,7 +294,7 @@ void AudioReceiveStream::AssociateSendStream(AudioSendStream* send_stream) {
   if (send_stream) {
     VoiceEngineImpl* voe_impl = static_cast<VoiceEngineImpl*>(voice_engine());
     std::unique_ptr<voe::ChannelProxy> send_channel_proxy =
-        voe_impl->GetChannelProxy(send_stream->config().voe_channel_id);
+        voe_impl->GetChannelProxy(send_stream->GetConfig().voe_channel_id);
     channel_proxy_->AssociateSendChannel(*send_channel_proxy.get());
   } else {
     channel_proxy_->DisassociateSendChannel();