Roll fontconfig to d1f48f11

Commits:
https://chromium.googlesource.com/external/fontconfig/+log/6cc99d6a82ad67d2f5eac887b28bca13c0dfddde..d1f48f11d5dffa1d954a1b0abe44ce9e4bfc3709

BUG=857511
TBR=dnicoara

Change-Id: Ib3b499aa63d87c2886261ddcfbe692f24f7be59a
Reviewed-on: https://chromium-review.googlesource.com/1138543
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575380}
3 files changed