remove more CriticalSectionWrappers.

webrtc/modules/video_coding/media_optimization.h

 /*
  *  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 83 matching lines @@
                                uint16_t height,
                                int num_temporal_layers,
                                int32_t mtu)
       EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
 
   uint32_t InputFrameRateInternal() EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
 
   uint32_t SentFrameRateInternal() EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
 
   // Protect all members.
-  std::unique_ptr<CriticalSectionWrapper> crit_sect_;
+  rtc::CriticalSection crit_sect_;
 
   Clock* clock_ GUARDED_BY(crit_sect_);
   int32_t max_bit_rate_ GUARDED_BY(crit_sect_);
   uint16_t codec_width_ GUARDED_BY(crit_sect_);
   uint16_t codec_height_ GUARDED_BY(crit_sect_);
   float user_frame_rate_ GUARDED_BY(crit_sect_);
   std::unique_ptr<FrameDropper> frame_dropper_ GUARDED_BY(crit_sect_);
   uint32_t send_statistics_[4] GUARDED_BY(crit_sect_);
   uint32_t send_statistics_zero_encode_ GUARDED_BY(crit_sect_);
   int32_t max_payload_size_ GUARDED_BY(crit_sect_);
   int video_target_bitrate_ GUARDED_BY(crit_sect_);
   float incoming_frame_rate_ GUARDED_BY(crit_sect_);
   int64_t incoming_frame_times_[kFrameCountHistorySize] GUARDED_BY(crit_sect_);
   std::list<EncodedFrameSample> encoded_frame_samples_ GUARDED_BY(crit_sect_);
   uint32_t avg_sent_bit_rate_bps_ GUARDED_BY(crit_sect_);
   uint32_t avg_sent_framerate_ GUARDED_BY(crit_sect_);
   int num_layers_ GUARDED_BY(crit_sect_);
 };
 }  // namespace media_optimization
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_MEDIA_OPTIMIZATION_H_