Roll third_party/zlib/ 6fe4ce825..cff720848 (3 commits)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/6fe4ce825fd9..cff720848d7d

Created with:
  roll-dep third_party/zlib

Change-Id: Ifd9eff892a5baecc783f23900eebeef25c06bcfe
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/100153
Reviewed-by: Nigi <nigi@chromium.org>
Reviewed-by: K. Moon <kmoon@chromium.org>
Auto-Submit: Lei Zhang <thestig@chromium.org>
Commit-Queue: K. Moon <kmoon@chromium.org>
diff --git a/DEPS b/DEPS
index 9486908..38970e0 100644
--- a/DEPS
+++ b/DEPS
@@ -158,7 +158,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling zlib
   # and whatever else without interference from each other.
-  'zlib_revision': '6fe4ce825fd93c6e7a23eecd385a66e181fb6b81',
+  'zlib_revision': 'cff720848d7ddad191354f153f7acbb43af09b74',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.