Revert "Revert "Call XSync in the GLX EGL impl if we have a new X server connection"" This reverts commit 9c0a421858162673f4232d37bf8c5e2459ec28ea. Change-Id: Ia543daebc240b81950e21930895a7e24ed9f7a1b Reviewed-on: https://chromium-review.googlesource.com/272225 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>