Wire up bandwidth limitation info to GetStats and adapt_reason.

webrtc/video/send_statistics_proxy.cc

 /*
  *  Copyright (c) 2013 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 240 matching lines @@
   if (stats == nullptr)
     return;
 
   stats->width = encoded_image._encodedWidth;
   stats->height = encoded_image._encodedHeight;
   update_times_[ssrc].resolution_update_ms = clock_->TimeInMilliseconds();
 
   uma_container_->key_frame_counter_.Add(encoded_image._frameType ==
                                          kVideoFrameKey);
 
+  stats_.bw_limited_resolution =
+      encoded_image.adapt_reason_.quality_resolution_downscales > 0 ||
+      encoded_image.adapt_reason_.bw_resolutions_disabled > 0;
+
   if (encoded_image.adapt_reason_.quality_resolution_downscales != -1) {
     bool downscaled =
         encoded_image.adapt_reason_.quality_resolution_downscales > 0;
     uma_container_->quality_limited_frame_counter_.Add(downscaled);
     if (downscaled) {
       uma_container_->quality_downscales_counter_.Add(
           encoded_image.adapt_reason_.quality_resolution_downscales);
     }
   }
   if (encoded_image.adapt_reason_.bw_resolutions_disabled != -1) {
@@ skipping 139 matching lines @@
   return Fraction(min_required_samples, 1000.0f);
 }
 
 int SendStatisticsProxy::BoolSampleCounter::Fraction(
     int min_required_samples, float multiplier) const {
   if (num_samples < min_required_samples || num_samples == 0)
     return -1;
   return static_cast<int>((sum * multiplier / num_samples) + 0.5f);
 }
 }  // namespace webrtc