Bug 1046644 - Honor OpenH264 autoupdate pref for the initial GMP install check. r=gfritzsche a=sylvestre
Bug 1042765 - Better logging for GMP plugins r=cpearce a=sylvestre
Bug 1037424 - Part 1: Implement prefs-based screenshare domain whitelist in MediaManager. r=mt,ehugg a=sylvestre
bug 1037424 - follow up to allow browser from privileged content r=jesup a=sylvestre
Bug 1039666: Enable Screen/windowsharing tests for getUserMedia except OSX 10.6 and WinXP r=drno a=sylvestre
Bug 1039666: Fix incorrect disabling of B2G window/screensharing rs=me,fabrice (bustage) a=sylvestre
Bug 1039666: suppress 'nonqueued' IPC assertions (bug 1047842) in window/screensharing r=nigelb a=sylvestre
Bug 1039666: Disable screen/windowsharing for OSX 10.6 and WinXP (re-merged) r=cpearce a=sylvestre
b=1045482 make XErrorTrap installation and removal thread-safe r=jesup a=sylvestre

Error handling is now applied to the Display using async_handlers, instead of
replacing and trying to reinstate the XSetErrorHandler() global handler for
all Xlib Displays.

Inspired by use of the same Xlibint.h structures at
https://git.gnome.org/browse/gtk+/tree/gdk/x11/gdkasync.c?id=0e1a4248#n252
https://git.gnome.org/browse/gtk+/tree/gdk/x11/gdkasync.c?id=0e1a4248#n150
Compare use of _XAsyncErrorHandler in libX11.
Bug 1045482: Wrap X11 calls for window lists and XQueryPointer in error trapping to avoid asserts on X11 errors r=karlt a=sylvestre
Bug 1047442: reacquire _sendCritSect within webrtc Encoded() callback (upstream patch) r=pkerr a=sylvestre
Bug 1047442: Add thread to resolve deadlock on sendCritSect caused by sync Encode dispatch to GMPThread r=pkerr a=sylvestre
Bug 1048017: pref on WebRTC screensharing - whitelist blocks access by default rs=jesup a=sylvestre