Start reporting watch time if ABR adapts above 200p.

media/blink/webmediaplayer_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 1403 matching lines @@
   if (rotated_size == pipeline_metadata_.natural_size)
     return;
 
   TRACE_EVENT0("media", "WebMediaPlayerImpl::OnNaturalSizeChanged");
   media_log_->AddEvent(media_log_->CreateVideoSizeSetEvent(
       rotated_size.width(), rotated_size.height()));
 
   if (overlay_enabled_ && surface_manager_)
     surface_manager_->NaturalSizeChanged(rotated_size);
 
-  gfx::Size old_size = pipeline_metadata_.natural_size;
   pipeline_metadata_.natural_size = rotated_size;
-  if (old_size.IsEmpty()) {
-    // WatchTimeReporter doesn't report metrics for empty videos. Re-create
-    // |watch_time_reporter_| if we didn't originally know the video size.
+
+  // Re-create |watch_time_reporter_| if we didn't originally know the video
+  // size or the previous size was too small for reporting.
+  if (!watch_time_reporter_->IsSizeLargeEnoughToReportWatchTime())
     CreateWatchTimeReporter();
-  }
+
   client_->SizeChanged();
 
   if (observer_)
     observer_->OnMetadataChanged(pipeline_metadata_);
 }
 
 void WebMediaPlayerImpl::OnVideoOpacityChange(bool opaque) {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
   DCHECK_NE(ready_state_, WebMediaPlayer::kReadyStateHaveNothing);
 
@@ skipping 918 matching lines @@
 
 void WebMediaPlayerImpl::RecordUnderflowDuration(base::TimeDelta duration) {
   DCHECK(data_source_ || chunk_demuxer_);
   if (data_source_)
     UMA_HISTOGRAM_TIMES("Media.UnderflowDuration", duration);
   else
     UMA_HISTOGRAM_TIMES("Media.UnderflowDuration.MSE", duration);
 }
 
 }  // namespace media