Bug 624422 - Build plugin-container for Gtk2 and Xt plugins, nsPluginNativeWindowGtk part. r=karlt

--HG--
rename : dom/plugins/base/nsPluginNativeWindowGtk2.cpp => dom/plugins/base/nsPluginNativeWindowGtk.cpp
Bug 881976 - Part 1: Expose TextTrack::TextTrackList to Chrome JS. r=rillian, r=bz

Our JS WebVTT implementation (vtt.js) needs access to the Track's
TextTrackList in order to compute the line position of a TextTrackCue.
Therefore, we need to expose it to chrome JS so that vtt.js can have
access to it.
Bug 938228 - Fix marshaling of NodeList in executeScript. r=mdas
Bug 941158 - Honour expected failures in setUp or tearDown. r=zac
Bug 948265 - [CSS Filters] Move nsAutoFilterInstance filter region calculations into nsSVGFilterInstance. r=roc
Bug 948984 - Add functions to fuzzily compare float numbers. r=bjacob, r=Waldo