Reject program binaries when the renderer string changes If the underlying driver changes, reject program binaries from the old versions. The driver is supposed to do this for us (on OpenGL, at least) but this adds some extra protection. Bug: angleproject:4981 Change-Id: Id9486d8e6f9136970c0d7c37d59dea5d43b0a50e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4685317 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>