Length returned from glGetUniform*RobustANGLE should be in values, not bytes. BUG=angleproject:1354 Change-Id: I805499c3514a8b323e9864b7cf9100814f3d5cc5 Reviewed-on: https://chromium-review.googlesource.com/411420 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>