Add tracing to VCMGenericEncoder::Release.

webrtc/modules/video_coding/generic_encoder.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 91 matching lines @@
       rate_observer_(rate_observer),
       vcm_encoded_frame_callback_(encoded_frame_callback),
       internal_source_(internalSource),
       encoder_params_({0, 0, 0, 0}),
       rotation_(kVideoRotation_0),
       is_screenshare_(false) {}
 
 VCMGenericEncoder::~VCMGenericEncoder() {}
 
 int32_t VCMGenericEncoder::Release() {
+  TRACE_EVENT0("webrtc", "VCMGenericEncoder::Release");
   return encoder_->Release();
 }
 
 int32_t VCMGenericEncoder::InitEncode(const VideoCodec* settings,
                                       int32_t numberOfCores,
                                       size_t maxPayloadSize) {
   TRACE_EVENT0("webrtc", "VCMGenericEncoder::InitEncode");
   {
     rtc::CritScope lock(&params_lock_);
     encoder_params_.target_bitrate = settings->startBitrate * 1000;
@@ skipping 180 matching lines @@
   _mediaOpt = mediaOpt;
 }
 
 void VCMEncodedFrameCallback::SignalLastEncoderImplementationUsed(
     const char* implementation_name) {
   if (send_callback_)
     send_callback_->OnEncoderImplementationName(implementation_name);
 }
 
 }  // namespace webrtc