When calling EndTransformFeedback, we might change the current program. This sets a dirty bit, but it might not get cleared before the next draw call, so this change makes us manually restore the program state after calling EndTransformFeedback. This is a follow-up to: https://chromium-review.googlesource.com/c/angle/angle/+/1448661 Bug: 832238 Change-Id: I1bea1b9685f55d68b04439a9b0a305deb48708c0 Reviewed-on: https://chromium-review.googlesource.com/c/1475061 Commit-Queue: James Darpinian <jdarpinian@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>
