Clamp "count" in glUniform* before passing to the backend The OpenGL spec allows "count" to overflow safely implemented but some drivers like the Intel Windows OpenGL driver don't handle this correctly and crash on overflow tests. BUG=661413 Change-Id: I10de9292c75daa375f002850900bb5e1cbfce3b6 Reviewed-on: https://chromium-review.googlesource.com/411387 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Corentin Wallez <cwallez@chromium.org>