Using AudioOption to enable audio network adaptor.

webrtc/voice_engine/channel_proxy.cc

Index: webrtc/voice_engine/channel_proxy.cc
diff --git a/webrtc/voice_engine/channel_proxy.cc b/webrtc/voice_engine/channel_proxy.cc
index fc22180566ccba2948cfa9e093ed58dcc6fcb185..f7ca9ad9e4f3aeb7c635e046cf780b334618820b 100644
--- a/webrtc/voice_engine/channel_proxy.cc
+++ b/webrtc/voice_engine/channel_proxy.cc
@@ -214,6 +214,23 @@ void ChannelProxy::SetRtcEventLog(RtcEventLog* event_log) {
   channel()->SetRtcEventLog(event_log);
 }
 
+bool ChannelProxy::EnableAudioNetworkAdaptor(const std::string& config_string) {
+  RTC_DCHECK(thread_checker_.CalledOnValidThread());
+  return channel()->EnableAudioNetworkAdaptor(config_string);

[the sun, 2016/10/25 09:25:46]

AFAICT this call cannot fail (that would mean new() failed for
AudioNetworkAdaptorImpl). Please remove the return value in the ChannelProxy and
DCHECK the assumption instead. Preferably, you could also create a CL to
simplify things down the chain - I don't see how this settable
NetworkAdaptorCreator is ever used - only the default one seems to be used?

+}
+
+void ChannelProxy::DisableAudioNetworkAdaptor() {
+  RTC_DCHECK(thread_checker_.CalledOnValidThread());
+  channel()->DisableAudioNetworkAdaptor();
+}
+
+void ChannelProxy::SetReceiverFrameLengthRange(int min_frame_length_ms,
+                                               int max_frame_length_ms) {
+  RTC_DCHECK(thread_checker_.CalledOnValidThread());
+  channel()->SetReceiverFrameLengthRange(min_frame_length_ms,
+                                         max_frame_length_ms);
+}
+
 Channel* ChannelProxy::channel() const {
   RTC_DCHECK(channel_owner_.channel());
   return channel_owner_.channel();