Using AudioOption to enable audio network adaptor.

webrtc/media/engine/fakewebrtccall.cc

Index: webrtc/media/engine/fakewebrtccall.cc
diff --git a/webrtc/media/engine/fakewebrtccall.cc b/webrtc/media/engine/fakewebrtccall.cc
index 88f9927446944fa929458aec9d8382d5c25dbbc6..6adefe51d619a8950bf53926570498328d641ca9 100644
--- a/webrtc/media/engine/fakewebrtccall.cc
+++ b/webrtc/media/engine/fakewebrtccall.cc
@@ -56,6 +56,17 @@ webrtc::AudioSendStream::Stats FakeAudioSendStream::GetStats() const {
   return stats_;
 }
 
+bool FakeAudioSendStream::EnableAudioNetworkAdaptor(
+    const std::string& config_string) {
+  return true;
+}
+
+void FakeAudioSendStream::DisableAudioNetworkAdaptor() {}
+
+void FakeAudioSendStream::SetReceiverFrameLengthRange(
+    int min_frame_length_ms,
+    int max_frame_length_ms){};
+
 FakeAudioReceiveStream::FakeAudioReceiveStream(
     const webrtc::AudioReceiveStream::Config& config)
     : config_(config) {