This will allow us to use EGLAttrib and pass pointers as Display init parameters if necessary. BUG=angleproject:2042 Change-Id: Ib0f85d71bc9d3dff2db9453012f40303f3c3bd7c Reviewed-on: https://chromium-review.googlesource.com/513518Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
