This is required to have use_x11 && use_ozone builds at the same time.

Bug: chromium:1085700
Change-Id: I3d4cdf590e1ecf79af9e2d4bd585955c3f1b7af6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2315031Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>