sql: Replace typedef with using.

Change-Id: Ia275f1610f1e654937fec6eb2dca93928e203107
Reviewed-on: https://chromium-review.googlesource.com/1137847
Reviewed-by: Chris Mumford <cmumford@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576179}
2 files changed