Web Inspector: [Timeline] File selector control becomes visible on "tab" navigation.
https://bugs.webkit.org/show_bug.cgi?id=111710

Reviewed by Pavel Feldman.

Solution: Exclude file selector control from tab-navigation flow.

* inspector/front-end/FileUtils.js: Set tab-index to control.
* inspector/front-end/TimelinePanel.js: Remove duplicating code.
* inspector/front-end/inspector.css:
(.status-bar-item): Make scroll height equal to offset height.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145496 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed GTK gardening.

* platform/gtk/TestExpectations: Adding failure expectations for tests introduced in r145397 and r145474.
* platform/gtk/fast/js/global-constructors-expected.txt: Rebaselining after r145400.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145497 268f45cc-cd09-0410-ab3c-d52691b4dbfc