KHR_create_context with GLES forbids _KHR reset notification enum. EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT from EXT_create_context_robustness must be used with GLES instead. BUG=angleproject:2213 Change-Id: Icaf3c7550c4eb7cb61c6d4ed37adba7824ca4bc8 Reviewed-on: https://chromium-review.googlesource.com/759122 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>