Count usage of MediaStream active and inactive events

third_party/WebKit/Source/modules/mediastream/MediaStream.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011, 2012 Ericsson AB. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 288 matching lines @@
     if (!m_descriptor->ended()) {
         m_descriptor->setEnded();
         scheduleDispatchEvent(Event::create(EventTypeNames::ended));
     }
 }
 
 bool MediaStream::addEventListenerInternal(const AtomicString& eventType, EventListener* listener, const AddEventListenerOptions& options)
 {
     if (eventType == EventTypeNames::ended)
         Deprecation::countDeprecation(getExecutionContext(), UseCounter::MediaStreamOnEnded);
+    else if (eventType == EventTypeNames::active)
+        UseCounter::count(getExecutionContext(), UseCounter::MediaStreamOnActive);
+    else if (eventType == EventTypeNames::inactive)
+        UseCounter::count(getExecutionContext(), UseCounter::MediaStreamOnInactive);
 
     return EventTargetWithInlineData::addEventListenerInternal(eventType, listener, options);
 }
 
 void MediaStream::contextDestroyed()
 {
     ContextLifecycleObserver::contextDestroyed();
     m_stopped = true;
 }
 
@@ skipping 110 matching lines @@
     ContextLifecycleObserver::trace(visitor);
     MediaStreamDescriptorClient::trace(visitor);
 }
 
 MediaStream* toMediaStream(MediaStreamDescriptor* descriptor)
 {
     return static_cast<MediaStream*>(descriptor->client());
 }
 
 } // namespace blink