Do not report cpu limited resolution stats when degradation preference is disabled and no scaling i…

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 691 matching lines @@
   rtc::CritScope lock(&crit_);
   return stats_.encode_frame_rate;
 }
 
 void SendStatisticsProxy::OnIncomingFrame(int width, int height) {
   rtc::CritScope lock(&crit_);
   uma_container_->input_frame_rate_tracker_.AddSamples(1);
   uma_container_->input_fps_counter_.Add(1);
   uma_container_->input_width_counter_.Add(width);
   uma_container_->input_height_counter_.Add(height);
-  uma_container_->cpu_limited_frame_counter_.Add(stats_.cpu_limited_resolution);
+  if (cpu_downscales_ >= 0) {
+    uma_container_->cpu_limited_frame_counter_.Add(
+        stats_.cpu_limited_resolution);
+  }
   TRACE_EVENT_INSTANT2("webrtc_stats", "WebRTC.Video.InputFrameRate",
       "frame_rate", round(
           uma_container_->input_frame_rate_tracker_.ComputeRate()),
       "ssrc", rtp_config_.ssrcs[0]);
 }
 
 void SendStatisticsProxy::SetCpuScalingStats(int num_cpu_downscales) {
   rtc::CritScope lock(&crit_);
   cpu_downscales_ = num_cpu_downscales;
   stats_.cpu_limited_resolution = num_cpu_downscales > 0;
@@ skipping 202 matching lines @@
 }
 
 int SendStatisticsProxy::BoolSampleCounter::Fraction(
     int64_t 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