https://bugs.webkit.org/show_bug.cgi?id=105081

Reviewed by Sam Weinig.

Source/WebCore:

No new tests, media/track/track-in-band.html was updated to test this change.

* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::mediaPlayerDidRemoveTrack): Move some code into removeTrack.
(WebCore::HTMLMediaElement::removeTrack): New, remove a track and all of its cues.
(WebCore::HTMLMediaElement::removeAllInbandTracks): New, remove all in-band tracks.
(WebCore::HTMLMediaElement::clearMediaPlayer): Call removeAllInbandTracks.
* html/HTMLMediaElement.h:

* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.h:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::~MediaPlayerPrivateAVFoundationObjC):
(WebCore::MediaPlayerPrivateAVFoundationObjC::cancelLoad): Call clearTextTracks.
(WebCore::MediaPlayerPrivateAVFoundationObjC::clearTextTracks): Remove all tracks from client.

LayoutTests:

Extend test to verify that all in-band tracks are removed from the media element
when its src changes.

* media/track/track-in-band-expected.txt:
* media/track/track-in-band.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@137844 268f45cc-cd09-0410-ab3c-d52691b4dbfc