GitLab

Fix a bug in CaseMappingHarfBuzzBufferFiller where 8-bit strings weren't
up-converted to 16-bit in cases were the original and case mapped string
differed in length which hit a CHECK in the String::Characters16 method.

Bug: 899876, 899868
No-Try: true
Change-Id: I5de8fbaabbc08932904846ffa4674129263f50aa
Reviewed-on: https://chromium-review.googlesource.com/c/1330723
Commit-Queue: Emil A Eklund <eae@chromium.org>
Reviewed-by: Christian Biesinger <cbiesinger@chromium.org>
Reviewed-by: Stefan Zager <szager@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607106}