Roll third_party/zlib/ dcf1d0f8c..dde5ce526 (6 commits)

https://chromium.googlesource.com/chromium/src/third_party/zlib.git/+log/dcf1d0f8c952..dde5ce526c84

Created with:
  roll-dep third_party/zlib

TBR=tsepez@chromium.org

Change-Id: I32c3517073aa744c8bf2e012e6ac257ed2e124d2
Reviewed-on: https://pdfium-review.googlesource.com/c/45380
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 9e4e36a..fa6962d 100644
--- a/DEPS
+++ b/DEPS
@@ -35,7 +35,7 @@
   'trace_event_revision': '211b3ed9d0481b4caddbee1322321b86a483ca1f',
   'v8_revision': 'a4f6a37da361b69c87c9230152d8cfb8ce351428',
   'yasm_source_revision': '720b70524a4424b15fc57e82263568c8ba0496ad',
-  'zlib_revision': 'dcf1d0f8c952f76cfceefb4ba61e004f93ad7287',
+  'zlib_revision': 'dde5ce526c84143fb931a5191dd4623ae6d197d6',
 }
 
 deps = {