https://bugs.webkit.org/show_bug.cgi?id=123316

Source/WebCore: 

Reviewed by Jer Noble

No new tests, existing tests updated.

* CMakeLists.txt: Add MediaStreamSourceStates.cpp.

* Modules/mediastream/MediaSourceStates.cpp:
(WebCore::MediaSourceStates::MediaSourceStates): m_SourceStates -> m_sourceStates.
(WebCore::MediaSourceStates::sourceType): Ditto.
(WebCore::MediaSourceStates::facingMode): Ditto.
* Modules/mediastream/MediaSourceStates.h: Ditto.
* Modules/mediastream/MediaSourceStates.idl: Mark some attributes as optional.

* Modules/mediastream/MediaStream.cpp:
(WebCore::MediaStream::addTrack):
(WebCore::MediaStream::removeTrack):
(WebCore::MediaStream::addRemoteSource):
(WebCore::MediaStream::removeRemoteSource):

* Modules/mediastream/MediaStreamCapabilities.cpp:
(WebCore::MediaStreamCapabilities::sourceType): MediaSourceStates -> MediaStreamSourceStates
(WebCore::MediaStreamCapabilities::facingMode): Ditto.

* Modules/mediastream/MediaStreamTrack.cpp:
(WebCore::MediaStreamTrack::MediaStreamTrack): Don't observe source changes directly, let the
    private track do that. Change private track parameter to ref because it can't be NULL.
(WebCore::MediaStreamTrack::~MediaStreamTrack): Ditto.
(WebCore::MediaStreamTrack::setSource): Pass through to private track.
(WebCore::MediaStreamTrack::stopped): Ditto.
(WebCore::MediaStreamTrack::states): Ditto.
(WebCore::MediaStreamTrack::capabilities): Ditto.
(WebCore::MediaStreamTrack::applyConstraints): Ditto.
(WebCore::MediaStreamTrack::stopProducingData): Ditto.
(WebCore::MediaStreamTrack::trackReadyStateChanged): Renamed from sourceStateChanged. Don't
    schedule an 'ended' event if called as a side effect of the stop() method having been
    called as per spec.
(WebCore::MediaStreamTrack::trackMutedChanged): Renamed from sourceMutedChanged.
(WebCore::MediaStreamTrack::trackEnabledChanged): Renamed from sourceEnabledChanged.
(WebCore::MediaStreamTrack::stop): Pass through to private track.
* Modules/mediastream/MediaStreamTrack.h:
(WebCore::MediaStreamTrack::Observer::~Observer): Add virtual destructor.

* Modules/mediastream/UserMediaRequest.cpp:
(WebCore::UserMediaRequest::callSuccessHandler): Set track, not source, constraints.

* WebCore.xcodeproj/project.pbxproj: Add new files.

* bindings/js/JSMediaSourceStatesCustom.cpp:
(WebCore::JSMediaSourceStates::facingMode): Return jsUndefined when the facing mode
    is Unknown.

* platform/mediastream/MediaStreamCenter.h: Remove unused class forward defines and
    undefined method prototype.

* platform/mediastream/MediaStreamDescriptor.cpp:
(WebCore::MediaStreamDescriptor::addSource): ASSERT if source is kind None.
(WebCore::MediaStreamDescriptor::removeSource): Ditto.
(WebCore::MediaStreamDescriptor::MediaStreamDescriptor):

* platform/mediastream/MediaStreamSource.cpp:
(WebCore::MediaStreamSource::setReadyState): Call startProducingData when readyState changes
    to Live, stopProducingData when it changes to Ended.
(WebCore::MediaStreamSource::removeObserver): Call stop() when there are no more observers.
(WebCore::MediaStreamSource::setEnabled): If passed false, do nothing unless all observers
    are disabled. Call startProducingData/stopProducingData when becoming enabled/disabled.
(WebCore::MediaStreamSource::stop): Don't bother checking to see if other observers have
    stopped, the spec says that track.stop() should permanently stop the track's source.
* platform/mediastream/MediaStreamSource.h:
(WebCore::MediaStreamSource::name): Make virtual so derived classes can override.
(WebCore::MediaStreamSource::setName): Ditto.
(WebCore::MediaStreamSource::readyState): Ditto.
(WebCore::MediaStreamSource::enabled): Ditto.
(WebCore::MediaStreamSource::muted): Ditto.
(WebCore::MediaStreamSource::setReadonly): Ditto.
(WebCore::MediaStreamSource::remote): Ditto.
(WebCore::MediaStreamSource::setRemote): Ditto.
(WebCore::MediaStreamSource::startProducingData): Added.
(WebCore::MediaStreamSource::stopProducingData): Added.

* platform/mediastream/MediaStreamSourceCapabilities.h: Move MediaStreamSourceStates to
    its own file.

* platform/mediastream/MediaStreamSourceStates.cpp: Added.
(WebCore::MediaStreamSourceStates::facingMode): Moved here from MediaSourceStates so the 
    strings are available to platform code.
(WebCore::MediaStreamSourceStates::sourceType): Ditto.
* platform/mediastream/MediaStreamSourceStates.h: Added, moved from MediaStreamSourceCapabilities.h.

* platform/mediastream/MediaStreamTrackPrivate.cpp:
(WebCore::MediaStreamTrackPrivate::create): Pass private track to constructor as PassRefPtr.
(WebCore::MediaStreamTrackPrivate::MediaStreamTrackPrivate): Initialize member variables.
(WebCore::MediaStreamTrackPrivate::~MediaStreamTrackPrivate): Unregister as source observer.
(WebCore::MediaStreamTrackPrivate::setSource): Unregister/register as source observer.
(WebCore::MediaStreamTrackPrivate::setEnabled): Enable/disable source, call client.
(WebCore::MediaStreamTrackPrivate::stop): New. Set readyState to Ended, optionally stop source.
(WebCore::MediaStreamTrackPrivate::setReadyState): Inline the logic from shouldFireTrackReadyStateChanged.
(WebCore::MediaStreamTrackPrivate::constraints): New, passthrough to the source.
(WebCore::MediaStreamTrackPrivate::states): Ditto.
(WebCore::MediaStreamTrackPrivate::type): Ditto.
(WebCore::MediaStreamTrackPrivate::capabilities): Ditto.
(WebCore::MediaStreamTrackPrivate::applyConstraints): Ditto.
(WebCore::MediaStreamTrackPrivate::sourceReadyStateChanged): React to source changes.
(WebCore::MediaStreamTrackPrivate::sourceMutedChanged): Ditto.
(WebCore::MediaStreamTrackPrivate::sourceEnabledChanged): Ditto.
(WebCore::MediaStreamTrackPrivate::observerIsEnabled): Respond to source query.
(WebCore::MediaStreamTrackPrivate::observerIsStopped): Ditto.
* platform/mediastream/MediaStreamTrackPrivate.h:

* platform/mediastream/mac/AVAudioCaptureSource.h: Added.
* platform/mediastream/mac/AVAudioCaptureSource.mm: Added.

* platform/mediastream/mac/AVCaptureDeviceManager.h: Added.
* platform/mediastream/mac/AVCaptureDeviceManager.mm: Added.

* platform/mediastream/mac/AVMediaCaptureSource.h: Added.
* platform/mediastream/mac/AVMediaCaptureSource.mm: Added.

* platform/mediastream/mac/AVVideoCaptureSource.h: Added.
* platform/mediastream/mac/AVVideoCaptureSource.mm: Added.

* platform/mediastream/mac/MediaStreamCenterMac.cpp:
(WebCore::MediaStreamCenterMac::validateRequestConstraints): Implement.
(WebCore::MediaStreamCenterMac::createMediaStream): Ditto.
(WebCore::MediaStreamCenterMac::getMediaStreamTrackSources): Ditto.

* platform/mock/MockMediaStreamCenter.cpp:
(WebCore::initializeMockSources): Update for MediaStreamSourceStates changes.
(WebCore::MockMediaStreamCenter::createMediaStream):

LayoutTests: 

Reviewed by Jer Noble.

* fast/mediastream/MediaStream-add-remove-tracks-expected.txt: Updated.
* fast/mediastream/MediaStream-add-remove-tracks.html: Ditto.
* fast/mediastream/MediaStreamConstructor-expected.txt: Ditto.
* fast/mediastream/MediaStreamConstructor.html: Ditto.
* fast/mediastream/MediaStreamTrack-getSources.html: Remove typo.
* fast/mediastream/MediaStreamTrack-expected.txt: Updated results.
* fast/mediastream/MediaStreamTrack.html: Update to test track.stop() behavior.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@158220 268f45cc-cd09-0410-ab3c-d52691b4dbfc