Added a query function for whether submodules are enabled

webrtc/modules/audio_processing/gain_control_impl.cc

Index: webrtc/modules/audio_processing/gain_control_impl.cc
diff --git a/webrtc/modules/audio_processing/gain_control_impl.cc b/webrtc/modules/audio_processing/gain_control_impl.cc
index d190284063cc1861f26175df90b5d7772a3fdc3f..3a6fcb116d53644f95973a4f59f0620f79efdc8c 100644
--- a/webrtc/modules/audio_processing/gain_control_impl.cc
+++ b/webrtc/modules/audio_processing/gain_control_impl.cc
@@ -310,6 +310,12 @@ int GainControlImpl::Enable(bool enable) {
   return AudioProcessing::kNoError;
 }
 
+bool GainControlImpl::is_enabled_render_side_query() const {
+  // TODO(peah): Add threadchecker.
+  rtc::CritScope cs(crit_render_);
+  return enabled_;
+}
+
 bool GainControlImpl::is_enabled() const {
   rtc::CritScope cs(crit_capture_);
   return enabled_;