s/arguements_store/arguments_store/

BUG=
R=cbruni@chromium.org

Change-Id: Ib7b573d80521e717c65b30aff5c3b1170d3fc61a
Reviewed-on: https://chromium-review.googlesource.com/555494Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46328}