Roll third_party/zlib/ 26211a5a8..e84c9a3fd (2 commits)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/26211a5a8e7e..e84c9a3fd75f

Created with:
  roll-dep third_party/zlib

TBR=dhoss@chromium.org

Change-Id: I20ca2d9bd0b3cec59fc67e8fe00fb98bfdf37789
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/76413
Reviewed-by: Hui Yingst <nigi@chromium.org>
Reviewed-by: Daniel Hosseinian <dhoss@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 458ded8..4952599 100644
--- a/DEPS
+++ b/DEPS
@@ -115,7 +115,7 @@
   # 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': '26211a5a8e7e28286fc28a84a0e102cc96bf0f0b',
+  'zlib_revision': 'e84c9a3fd75fdc39055b7ae27d6ec508e50bd39e',
 }
 
 deps = {