media: Add incognito EME playback UMA

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 1077 matching lines @@
 }
 
 void WebMediaPlayerImpl::OnCdmAttached(bool success) {
   DVLOG(1) << __func__ << ": success = " << success;
   DCHECK(main_task_runner_->BelongsToCurrentThread());
   DCHECK(pending_cdm_);
 
   // If the CDM is set from the constructor there is no promise
   // (|set_cdm_result_|) to fulfill.
   if (success) {
+    media_log_->SetBooleanProperty("has_cdm", true);
+
     // This will release the previously attached CDM (if any).
     cdm_ = std::move(pending_cdm_);
     if (set_cdm_result_) {
       set_cdm_result_->complete();
       set_cdm_result_.reset();
     }
 
     return;
   }
 
@@ skipping 1224 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