Remove prefixed EME.

media/blink/cdm_session_adapter.cc

 // Copyright 2014 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/cdm_session_adapter.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 194 matching lines @@
   if (session)
     session->OnSessionClosed();
 }
 
 void CdmSessionAdapter::OnLegacySessionError(
     const std::string& session_id,
     MediaKeys::Exception exception_code,
     uint32_t system_code,
     const std::string& error_message) {
   // Error events not used by unprefixed EME.
-  // TODO(jrummell): Remove when prefixed EME removed.
+  // TODO(jrummell): Remove when prefixed EME removed. https://crbug.com/249976
 }
 
 WebContentDecryptionModuleSessionImpl* CdmSessionAdapter::GetSession(
     const std::string& session_id) {
   // Since session objects may get garbage collected, it is possible that there
   // are events coming back from the CDM and the session has been unregistered.
   // We can not tell if the CDM is firing events at sessions that never existed.
   SessionMap::iterator session = sessions_.find(session_id);
   return (session != sessions_.end()) ? session->second.get() : NULL;
 }
 
 void CdmSessionAdapter::ReportTimeToCreateCdmUMA(base::TimeDelta time) const {
   // Note: This leaks memory, which is expected behavior.
   base::HistogramBase* histogram = base::Histogram::FactoryTimeGet(
       GetKeySystemUMAPrefix() + kTimeToCreateCdmUMAName,
       base::TimeDelta::FromMilliseconds(1), base::TimeDelta::FromSeconds(10),
       50, base::HistogramBase::kUmaTargetedHistogramFlag);
 
   histogram->AddTime(time);
 }
 
 }  // namespace media