Move mediastream module to oilpan transition types

Source/modules/mediastream/MediaStreamTrack.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 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 12 matching lines @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/mediastream/MediaStreamTrack.h"
 
 #include "bindings/v8/ExceptionMessages.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/events/Event.h"
+#include "modules/mediastream/MediaStream.h"
 #include "modules/mediastream/MediaStreamTrackSourcesCallback.h"
 #include "modules/mediastream/MediaStreamTrackSourcesRequestImpl.h"
 #include "platform/mediastream/MediaStreamCenter.h"
 #include "platform/mediastream/MediaStreamComponent.h"
 #include "public/platform/WebSourceInfo.h"
 
 namespace WebCore {
 
-PassRefPtr<MediaStreamTrack> MediaStreamTrack::create(ExecutionContext* context, MediaStreamComponent* component)
+PassRefPtrWillBeRawPtr<MediaStreamTrack> MediaStreamTrack::create(ExecutionContext* context, MediaStreamComponent* component)
 {
-    RefPtr<MediaStreamTrack> track = adoptRef(new MediaStreamTrack(context, component));
+    RefPtrWillBeRawPtr<MediaStreamTrack> track = adoptRefWillBeRefCountedGarbageCollected(new MediaStreamTrack(context, component));
     track->suspendIfNeeded();
     return track.release();
 }
 
 MediaStreamTrack::MediaStreamTrack(ExecutionContext* context, MediaStreamComponent* component)
     : ActiveDOMObject(context)
     , m_readyState(MediaStreamSource::ReadyStateLive)
-    , m_isIteratingObservers(false)
+    , m_isIteratingRegisteredMediaStreams(false)
     , m_stopped(false)
     , m_component(component)
 {
     ScriptWrappable::init(this);
     m_component->source()->addObserver(this);
 }
 
 MediaStreamTrack::~MediaStreamTrack()
 {
     m_component->source()->removeObserver(this);
@@ skipping 54 matching lines @@
     case MediaStreamSource::ReadyStateEnded:
         return "ended";
     }
 
     ASSERT_NOT_REACHED();
     return String();
 }
 
 void MediaStreamTrack::getSources(ExecutionContext* context, PassOwnPtr<MediaStreamTrackSourcesCallback> callback, ExceptionState& exceptionState)
 {
-    RefPtr<MediaStreamTrackSourcesRequest> request = MediaStreamTrackSourcesRequestImpl::create(context->securityOrigin()->toString(), callback);
+    RefPtrWillBeRawPtr<MediaStreamTrackSourcesRequest> request = MediaStreamTrackSourcesRequestImpl::create(context->securityOrigin()->toString(), callback);
     if (!MediaStreamCenter::instance().getMediaStreamTrackSources(request.release()))
         exceptionState.throwDOMException(NotSupportedError, ExceptionMessages::failedToExecute("getSources", "MediaStreamTrack", "Functionality not implemented yet"));
 }
 
 void MediaStreamTrack::stopTrack(ExceptionState& exceptionState)
 {
     if (ended())
         return;
 
     m_readyState = MediaStreamSource::ReadyStateEnded;
     MediaStreamCenter::instance().didStopMediaStreamTrack(component());
     dispatchEvent(Event::create(EventTypeNames::ended));
     propagateTrackEnded();
 }
 
-PassRefPtr<MediaStreamTrack> MediaStreamTrack::clone(ExecutionContext* context)
+PassRefPtrWillBeRawPtr<MediaStreamTrack> MediaStreamTrack::clone(ExecutionContext* context)
 {
     RefPtr<MediaStreamComponent> clonedComponent = MediaStreamComponent::create(component()->source());
-    RefPtr<MediaStreamTrack> clonedTrack = MediaStreamTrack::create(context, clonedComponent.get());
+    RefPtrWillBeRawPtr<MediaStreamTrack> clonedTrack = MediaStreamTrack::create(context, clonedComponent.get());
     MediaStreamCenter::instance().didCreateMediaStreamTrack(clonedComponent.get());
     return clonedTrack.release();
 }
 
 bool MediaStreamTrack::ended() const
 {
     return m_stopped || (m_readyState == MediaStreamSource::ReadyStateEnded);
 }
 
 void MediaStreamTrack::sourceChangedState()
@@ skipping 11 matching lines @@
         break;
     case MediaStreamSource::ReadyStateEnded:
         dispatchEvent(Event::create(EventTypeNames::ended));
         propagateTrackEnded();
         break;
     }
 }
 
 void MediaStreamTrack::propagateTrackEnded()
 {
-    RELEASE_ASSERT(!m_isIteratingObservers);
-    m_isIteratingObservers = true;
-    for (Vector<Observer*>::iterator iter = m_observers.begin(); iter != m_observers.end(); ++iter)
+    RELEASE_ASSERT(!m_isIteratingRegisteredMediaStreams);
+    m_isIteratingRegisteredMediaStreams = true;
+    for (WillBeHeapHashSet<RawPtrWillBeWeakMember<MediaStream> >::iterator iter = m_registeredMediaStreams.begin(); iter != m_registeredMediaStreams.end(); ++iter)
         (*iter)->trackEnded();
-    m_isIteratingObservers = false;
+    m_isIteratingRegisteredMediaStreams = false;
 }
 
 MediaStreamComponent* MediaStreamTrack::component()
 {
     return m_component.get();
 }
 
 void MediaStreamTrack::stop()
 {
     m_stopped = true;
 }
 
 PassOwnPtr<AudioSourceProvider> MediaStreamTrack::createWebAudioSource()
 {
     return MediaStreamCenter::instance().createWebAudioSourceFromMediaStreamTrack(component());
 }
 
-void MediaStreamTrack::addObserver(MediaStreamTrack::Observer* observer)
+void MediaStreamTrack::registerMediaStream(MediaStream* mediaStream)
 {
-    RELEASE_ASSERT(!m_isIteratingObservers);
-    m_observers.append(observer);
+    RELEASE_ASSERT(!m_isIteratingRegisteredMediaStreams);
+    RELEASE_ASSERT(!m_registeredMediaStreams.contains(mediaStream));
+    m_registeredMediaStreams.add(mediaStream);
 }
 
-void MediaStreamTrack::removeObserver(MediaStreamTrack::Observer* observer)
+void MediaStreamTrack::unregisterMediaStream(MediaStream* mediaStream)
 {
-    RELEASE_ASSERT(!m_isIteratingObservers);
-    size_t pos = m_observers.find(observer);
-    RELEASE_ASSERT(pos != kNotFound);
-    m_observers.remove(pos);
+    RELEASE_ASSERT(!m_isIteratingRegisteredMediaStreams);
+    WillBeHeapHashSet<RawPtrWillBeWeakMember<MediaStream> >::iterator iter = m_registeredMediaStreams.find(mediaStream);
+    RELEASE_ASSERT(iter != m_registeredMediaStreams.end());
+    m_registeredMediaStreams.remove(iter);
 }
 
 const AtomicString& MediaStreamTrack::interfaceName() const
 {
     return EventTargetNames::MediaStreamTrack;
 }
 
 ExecutionContext* MediaStreamTrack::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
+void MediaStreamTrack::trace(Visitor* visitor)
+{
+    visitor->trace(m_registeredMediaStreams);
+}
+
 } // namespace WebCore