Update freetype to 2.6

Fixes a font crash

BUG=chromium:524296
TEST=on lumpy: go to http://www.academyart.edu and see no crash

Change-Id: If1f43dc1085a1cd4e10f80299aba9acdcc8024f1
(cherry picked from commit 87673509c5e00f9ecc2b34e16879565c2f874bab)
Reviewed-on: https://chromium-review.googlesource.com/299795
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Commit-Queue: Stéphane Marchesin <marcheu@chromium.org>
Tested-by: Stéphane Marchesin <marcheu@chromium.org>
3 files changed