DEPS.xwalk: Bump Chromium version to include glib mainloop for Ozone

Include changes that will now build glib mainloop on the extension process
(only) when building for Ozone.
[Extensions] Force the GLib main-loop on Linux platform

Many Linux external extensions depends on glib mainloop integration,
mainly for DBus. GLib is the default main loop on Linux Desktop, but
when building if Ozone, you get a Libevent mainloop. This patch
brings GLib back to extension process (only) when building Ozone.

Should not affect anything when building with X11 support.

BUG=XWALK-1331
Merge pull request #1996 from tmpsantos/glib_mainloop

[Extensions] Force the GLib main-loop on Linux platform