Adding a namespace comment

webrtc/modules/audio_coding/neteq/neteq_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 171 matching lines @@
       break;
     }
     default:
       RTC_NOTREACHED();
   }
   if (!vad_enabled) {
     // Always set kVadUnknown when receive VAD is inactive.
     audio_frame->vad_activity_ = AudioFrame::kVadUnknown;
   }
 }
-}
+}  // namespace
 
 int NetEqImpl::GetAudio(AudioFrame* audio_frame) {
   TRACE_EVENT0("webrtc", "NetEqImpl::GetAudio");
   rtc::CritScope lock(&crit_sect_);
   int error = GetAudioInternal(audio_frame);
   RTC_DCHECK_EQ(
       audio_frame->sample_rate_hz_,
       rtc::checked_cast<int>(audio_frame->samples_per_channel_ * 100));
   if (error != 0) {
     error_code_ = error;
@@ skipping 1881 matching lines @@
 
 void NetEqImpl::CreateDecisionLogic() {
   decision_logic_.reset(DecisionLogic::Create(fs_hz_, output_size_samples_,
                                               playout_mode_,
                                               decoder_database_.get(),
                                               *packet_buffer_.get(),
                                               delay_manager_.get(),
                                               buffer_level_filter_.get()));
 }
 }  // namespace webrtc