Roll third_party/zlib/ 18d27fa10..2d44c51ad (5 commits)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/18d27fa10b23..2d44c51ada6d

Created with:
  roll-dep third_party/zlib

Change-Id: I6596c4667af3951f534a92483b73dcf7f6bc12b0
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/103595
Auto-Submit: K. Moon <kmoon@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index 22d594c..8616c03 100644
--- a/DEPS
+++ b/DEPS
@@ -168,7 +168,7 @@
   # 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': '18d27fa10b237fdfcbd8f0c65c19fe009981a3bc',
+  'zlib_revision': '2d44c51ada6d325b85b53427b02dabf44648bca4',
 }
 
 # Only these hosts are allowed for dependencies in this DEPS file.