Roll third_party/freetype/src/ 26ad1acbc..2157d8fa6 (21 commits)

https://chromium.googlesource.com/chromium/src/third_party/freetype2.git/+log/26ad1acbcb4c..2157d8fa6f7e

$ git log 26ad1acbc..2157d8fa6 --date=short --no-merges --format='%ad %ae %s'
2018-04-24 bungeman [base] Avoid undefined behaviour in lcd filtering code (#53727).
2018-04-22 wl * src/base/ftoutln.c (FT_Outline_Decompose): Improve error tracing.
2018-04-22 apodtele [base] Fix bitmap emboldening.
2018-04-22 wl Revert "[base] Fix bitmap copying where the new pitch is smaller."
2018-04-22 wl [base] Fix bitmap copying where the new pitch is smaller.
2018-04-22 wl Another fix for handling invalid format 2 cmaps.
2018-04-19 apodtele Documentation tweaks.
2018-04-19 wl [autofit] Add support for Georgian Mtavruli characters.
2018-04-19 wl Fix handling of invalid format 2 cmaps.
2018-04-17 wl [truetype] Integer overflow issues.
2018-04-16 wl CHANGES: Mention CVE-2018-6942.
2018-04-16 wl [truetype] Integer overflow issues.
2018-04-15 ankit97dhankhar [docmaker] Make it work with python3.
2018-04-15 apodtele [build] Use `info' function of make 3.81.
2018-04-15 wl [truetype]: Limit `SLOOP' bytecode argument to 16 bits.
2018-04-14 wl [truetype] Integer overflow issues.
2018-04-14 wl [autofit] Update to Unicode 11.0.0.
2018-04-07 madigens Modernize CMake build.
2018-04-09 wl [truetype] Integer overflow issues.
2018-04-06 apodtele [windows, wince] Clean up legacy project files.
2018-04-04 wl [cff, type1] Sanitize `BlueFuzz' and `BlueShift'.

Created with:
  roll-dep third_party/freetype/src

Bug: pdfium:1070
Change-Id: I097d77d9f9f4e37524edfdeaa2bc49e261ce4f42
Reviewed-on: https://pdfium-review.googlesource.com/31312
Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
diff --git a/DEPS b/DEPS
index c4783cf..d7e9be8 100644
--- a/DEPS
+++ b/DEPS
@@ -21,7 +21,7 @@
   'clang_revision': 'd7c36b0ae001a5cc31f2da79a430154916a3def2',
   'cygwin_revision': 'c89e446b273697fadf3a10ff1007a97c0b7de6df',
   'depot_tools_revision': '869a2857a4f3acc08fdec6182ecec5b73593be3b',
-  'freetype_revision': '26ad1acbcb4ca9e25163bd102971c8f0e1b56d87',
+  'freetype_revision': '2157d8fa6f7e12063ca166476ed2223d24234db7',
   'gtest_revision': 'a325ad2db5deb623eab740527e559b81c0f39d65',
   'icu_revision': 'd888fd2a1be890f4d35e43f68d6d79f42519a357',
   'instrumented_lib_revision': '323cf32193caecbf074d1a0cb5b02b905f163e0f',
diff --git a/third_party/freetype/README.pdfium b/third_party/freetype/README.pdfium
index 949a30d..5f06044 100644
--- a/third_party/freetype/README.pdfium
+++ b/third_party/freetype/README.pdfium
@@ -1,7 +1,7 @@
 Name: FreeType
 URL: http://www.freetype.org/
-Version: VER-2-9-20
-Revision: 4a03f17449ae45f0dacf4de4694ccd6e5e1b24d1
+Version: VER-2-9-67
+Revision: 2157d8fa6f7e12063ca166476ed2223d24234db7
 Security Critical: yes
 License: FreeType License (FTL)
 License File: FTL.TXT