Reland "rename use_x11 to ozone_platform_x11" This is a reland of 86f2854579ae7aaa4e425b8846693e44c3aede36 X11 shouldn't be enable for is_chromecast cases as the original use_x11 gn arg is only enabled on linux && !chromecast. Original change's description: > rename use_x11 to ozone_platform_x11 > > Ozone is default now in Chromium and non-Ozone/X11 (aka use_x11) is > deprecated. During the transition period use_x11 == ozone_platform_x11. > > Bug: chromium:1096425 > Change-Id: Ia691ce249bc49040956bed033891799127a57bbc > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3151755 > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Commit-Queue: Geoff Lang <geofflang@chromium.org> Bug: chromium:1096425 Change-Id: I6f8dbacb756ce57ca7379bbd991ca1ff470c244d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3263987 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Maksim Sisov <msisov@igalia.com>