In getUserMedia(), make sure a request has titles of devices which user can choose from.

[Matthew Daiter]

When presenting getUserMedia, the user should be informed of the device he or she is opening. This patch enables the passing of a list of strings from WebCore to WebKit2, enabling browsers to pull an available list of devices so a user can see options from which he or she can choose.

[Radar WebKit Bug Importer]

<rdar://problem/21844415>

[Matthew Daiter]

Created attachment 256871 [details]
Patch

[Eric Carlson]

Comment on attachment 256871 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=256871&action=review

> Source/WebCore/Modules/mediastream/UserMediaRequest.cpp:127
>  void UserMediaRequest::constraintsValidated()
>  {

Is this necessary to get titles?

> Source/WebCore/Modules/mediastream/UserMediaRequest.cpp:134
> +            Vector<RefPtr<TrackSourceInfo>> trackSourcesInfo = AVCaptureDeviceManager::singleton().getSourcesInfo("");

If so, this code is cross platform so I think you need to add a new virtual method to RealtimeMediaSourceCenter that calls [platform manager].getSourcesInfo()

> Source/WebCore/Modules/mediastream/UserMediaRequest.cpp:138
> +                    AVCaptureDeviceManager::singleton().verifyConstraintsForMediaType(RealtimeMediaSource::Audio, protectedAudio.get(), invalidConstraint);

Ditto, but for verifyConstraintsForMediaType.

> Source/WebCore/Modules/mediastream/UserMediaRequest.cpp:145
> +                    AVCaptureDeviceManager::singleton().verifyConstraintsForMediaType(RealtimeMediaSource::Video, protectedVideo.get(), invalidConstraint);

Ditto.

[Jon Lee]

This is handled elsewhere.