GitLab

Fixes a few small format string bugs and makes the windows library
configuration #defines more friendly for chromium builds.

Based on original CL: https://codereview.chromium.org/2730473002

BUG=724399,b:70905156

Change-Id: If54c6cfc5c508744d2ee18f251677b2456acda72
Reviewed-on: https://chromium-review.googlesource.com/1145626
Commit-Queue: Will Harris <wfh@chromium.org>
Reviewed-by: Albert J. Wong <ajwong@chromium.org>
Reviewed-by: Will Harris <wfh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577948}