[M67 Dev][EFL] Allow chromium to use EFL instead of Aura
This commit allows chromium code to use EFL as the main UI toolkit
instead of Aura. The actual implementation of EFL port of chromium
is done in an external module. This commit only exposes some of the
needed generic code paths that are normally disabled for non Aura or
MacOSX ports.
Reference:
5e22fe4d0bb137a1b73530205f7cdc07a31643c9
Change-Id: I1f327fb9e31616879cf0448735f1adbe82e476bf
Signed-off-by: Piotr Tworek <p.tworek@samsung.com>
Signed-off-by: Youngsoo Choi <kenshin.choi@samsung.com>