Roll HarfBuzz to 1.2.6

third_party/harfbuzz-ng/README.chromium

Index: third_party/harfbuzz-ng/README.chromium
diff --git a/third_party/harfbuzz-ng/README.chromium b/third_party/harfbuzz-ng/README.chromium
index 0048ffbec44b41ff860a2829774251e9bf03b415..6de755d0afcfbb88dda1708ee4192cc22265e49f 100644
--- a/third_party/harfbuzz-ng/README.chromium
+++ b/third_party/harfbuzz-ng/README.chromium
@@ -1,8 +1,8 @@
 Name: harfbuzz-ng
 Short Name: harfbuzz-ng
 URL: http://harfbuzz.org
-Version: 1.2.1
-Date: 20160222
+Version: 1.2.6
+Date: 20160408
 Security Critical: yes
 License: MIT
 License File: COPYING
@@ -18,15 +18,3 @@ tarball's src folder over to src, then checking for removed or added files
 and update our build recipes in BUILD.gn and harfbuzz.gyp accordingly, update
 the NEWS file from HarfBuzz' release notes, and bump the version numbers
 in README.chromium.
-
-Local changes:
-    * Custom revert: Change mark strategy back to UNICODE_LATE from
-      GDEF_LATE for the default shaper - contributed by Behdad to unblock
-      the HarfBuzz roll in Blink while the issue about broken quote glyphs
-      in Times New Roman Italic can be resolved in upstream.
-    * Upstream commit ebd7431f824
-      "Partially revert 86c68c7a2c97"
-      in order to fix mark positioning in
-      fast/text/international/arabic-vertical-offset.html
-    * Cherry-pick "Fix FixedVersion::to_int()"
-      https://github.com/behdad/harfbuzz/commit/6dd80fa