[GTK] Unreviewed GTK gardening.

Patch by Carlos Alberto Lopez Perez <clopez@igalia.com> on 2014-07-09

* platform/gtk/TestExpectations: Report and mark new failing and flaky tests. Adjust some tests expectations.
* platform/gtk/css1/formatting_model/inline_elements-expected.txt: Rebaseline after r170875.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@170916 268f45cc-cd09-0410-ab3c-d52691b4dbfc