The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e179e6a0db43ff5b286f1381ed5c2bf633960e49

commit e179e6a0db43ff5b286f1381ed5c2bf633960e49
Author: Dominik Röttsches <drott@chromium.org>
Date: Thu Aug 10 09:17:18 2017

Roll HarfBuzz to 1.4.8

Includes an important fix for avar table handling as well as allowing
disabling kerning on CoreText. Removed hb-fallback-shaper.cc from our
set of files we build after syncing with Behdad.

Bug:  753712 
Change-Id: Ifb58e7d7dcf4c2747efcc1e5e801040d1f74c8f7
Reviewed-on: https://chromium-review.googlesource.com/607888
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Cr-Commit-Position: refs/heads/master@{#493339}
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/BUILD.gn
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/NEWS
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/README.chromium
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-atomic-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-buffer.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-common.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-coretext.cc
[delete] https://crrev.com/0acfb0dac99381430c5659e33a5aef71541a8dac/third_party/harfbuzz-ng/src/hb-fallback-shape.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-font.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-layout-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-layout.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-map-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-map.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-arabic-table.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-arabic.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-indic-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-indic-table.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-indic.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-myanmar-machine.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-thai.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-use-machine.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-shape-complex-use-table.cc
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-ot-var-avar-table.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-unicode-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-utf-private.hh
[modify] https://crrev.com/e179e6a0db43ff5b286f1381ed5c2bf633960e49/third_party/harfbuzz-ng/src/hb-version.h