https://bugs.webkit.org/show_bug.cgi?id=100564

Reviewed by Adam Barth.

Source/WebCore:

Remove duplicate methods from internals that was just forwarding on the call to internals.settings.
Also fix a bug where we didn't reset these settings properly.

No new tests, this is covered by existing media/track tests.

* testing/InternalSettings.cpp:
(WebCore::InternalSettings::Backup::Backup): Properly save display track settings.
(WebCore::InternalSettings::Backup::restoreTo): Restore display track settings.
* testing/InternalSettings.h:
* testing/InternalSettings.idl: Use [Conditional=VIDEO_TRACK].
* testing/Internals.cpp: Remove code.
* testing/Internals.h: Remove code.
* testing/Internals.idl: Remove code.

LayoutTests:

Update tests to use the internals.settings method.

* media/track/track-language-preference-expected.txt:
* media/track/track-language-preference.html:
* media/track/track-prefer-captions-expected.txt:
* media/track/track-prefer-captions.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@132726 268f45cc-cd09-0410-ab3c-d52691b4dbfc