Roll tools/clang/ f2e1fa017..81bf7cada (1 commit)

https://chromium.googlesource.com/chromium/src/tools/clang/+log/f2e1fa017ad5..81bf7cadacde

Created with:
  roll-dep tools/clang

Change-Id: I4c2b876c776674560916c299641af25f62101cec
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/66716
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 93af157..2bdc939 100644
--- a/DEPS
+++ b/DEPS
@@ -17,7 +17,7 @@
   'build_revision': 'd4d44f882bee8a87301e701f4243616c2a879582',
   'buildtools_revision': '1f38b432e5630619f3aba0a22b9b63d606aee35a',
   'catapult_revision': 'ea794b87a8c5a2439c21bfc38e36e74aa8c2c518',
-  'clang_revision': 'f2e1fa017ad50fe5864e59c50d925add9b5b2c91',
+  'clang_revision': '81bf7cadacde86aefc4f78705ecba843f50cd207',
   'code_coverage_revision': 'c7a868bacaccf4f52848e04564fb7de0671e0727',
   'depot_tools_revision': '816c2b3548fbb7c48a876484faac3e5f39c9416d',
   'freetype_revision': '8930cc96188c21a0ea5f7da7a6d00c4fefd86d3a',