Get rid of the gtk/pango/cairo dependency

This also removes the aura dependency to chrome resources
since we repack the needed resources ourselves.

Change-Id: I8180d5668334540cfd88ade449f3f0c966b989ce
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Hide the definition of MessagePumpX11::GetDefaultXDisplay

This should replace patch 0011 since we do not build GTK code any more.

Change-Id: I156f164128b04eee6d5956a576adef3b9d2d18ea
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>