Properly report number of quality downscales in stats.

webrtc/video/vie_encoder.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 193 matching lines @@
   bool nack_enabled_ ACCESS_ON(&encoder_queue_);
   uint32_t last_observed_bitrate_bps_ ACCESS_ON(&encoder_queue_);
   bool encoder_paused_and_dropped_frame_ ACCESS_ON(&encoder_queue_);
   bool has_received_sli_ ACCESS_ON(&encoder_queue_);
   uint8_t picture_id_sli_ ACCESS_ON(&encoder_queue_);
   bool has_received_rpsi_ ACCESS_ON(&encoder_queue_);
   uint64_t picture_id_rpsi_ ACCESS_ON(&encoder_queue_);
   Clock* const clock_;
   // Counters used for deciding if the video resolution is currently
   // restricted, and if so, why.
-  int scale_counter_[kScaleReasonSize] ACCESS_ON(&encoder_queue_) = {0};
+  std::vector<int> scale_counter_ ACCESS_ON(&encoder_queue_);
   // Set depending on degradation preferences
   bool scaling_enabled_ ACCESS_ON(&encoder_queue_) = false;
 
   int last_frame_width_ ACCESS_ON(&encoder_queue_);
   int last_frame_height_ ACCESS_ON(&encoder_queue_);
   // Pixel count last time the resolution was requested to be changed down.
   rtc::Optional<int> max_pixel_count_ ACCESS_ON(&encoder_queue_);
   // Pixel count last time the resolution was requested to be changed up.
   rtc::Optional<int> max_pixel_count_step_up_ ACCESS_ON(&encoder_queue_);
 
@@ skipping 14 matching lines @@
   // All public methods are proxied to |encoder_queue_|. It must must be
   // destroyed first to make sure no tasks are run that use other members.
   rtc::TaskQueue encoder_queue_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(ViEEncoder);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIE_ENCODER_H_