tree c728379fb6fd6b176a71b7bcb6595bb389e50fee
parent 6cad77364bbd3a3574a87894fa93ea32c48bb5af
author Geoff Lang <geofflang@chromium.org> 1531235983 -0400
committer Commit Bot <commit-bot@chromium.org> 1531332660 +0000

EGL: Fix binding EGL_NO_SURFACE without surfaceless support.

It was possible for ANGLE to call eglMakeCurrent with EGL_NO_SURFACE and
a valid context when the client called eglMakeCurrent with
EGL_NO_SURFACE and EGL_NO_CONTEXT.  Fix this by always binding a surface
when the driver has no native surfaceless support.

Don't expose the surfaceless extension when it's not possible to support
it (unvirtualized contexts and no native surfaceless support).

BUG=860800
BUG=angleproject:2464

Change-Id: Id8af9638d4356dbd710c453c9f196b9f25a2bbf9
Reviewed-on: https://chromium-review.googlesource.com/1131555
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>