Unreviewed EFL gardening.

Remove unnecessary platform expectations for now-passing test.

* platform/efl/media/video-controls-captions-expected.txt: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139451 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Web Inspector: [Resources] Make grid columns set configurable.
https://bugs.webkit.org/show_bug.cgi?id=105739

Patch by Eugene Klyuchnikov <eustas@chromium.org> on 2013-01-11
Reviewed by Pavel Feldman.

Added context menu on grid header to hide/show grid columns.
Hidden columns set is persisted.

* inspector/front-end/DataGrid.js:
Fixed show/hide behavior, introduced weight control.
* inspector/front-end/NetworkPanel.js:
Added member to track visibility of columns in detailerd mode. Added
context menu for grid header.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139452 268f45cc-cd09-0410-ab3c-d52691b4dbfc