Adding activation logic of the new APM level control functionality using MediaConstraints

webrtc/api/localaudiosource.cc

Index: webrtc/api/localaudiosource.cc
diff --git a/webrtc/api/localaudiosource.cc b/webrtc/api/localaudiosource.cc
index 9da9fd2612316c384100ee6faf8ac6a773f60500..799fe7209ffb5c280d738d76a566ed0f165b36fc 100644
--- a/webrtc/api/localaudiosource.cc
+++ b/webrtc/api/localaudiosource.cc
@@ -49,11 +49,11 @@ void FromConstraints(const MediaConstraintsInterface::Constraints& constraints,
        options->experimental_ns},
       {MediaConstraintsInterface::kIntelligibilityEnhancer,
        options->intelligibility_enhancer},
+      {MediaConstraintsInterface::kLevelControl, options->level_control},
       {MediaConstraintsInterface::kHighpassFilter, options->highpass_filter},
       {MediaConstraintsInterface::kTypingNoiseDetection,
        options->typing_detection},
-      {MediaConstraintsInterface::kAudioMirroring, options->stereo_swapping}
-  };
+      {MediaConstraintsInterface::kAudioMirroring, options->stereo_swapping}};
 
   for (const auto& constraint : constraints) {
     bool value = false;