Roll third_party/libunwind/src/ 634c60974..84c5262b5 (1 commit)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind.git/+log/634c609746c6..84c5262b5714

Created with:
  roll-dep third_party/libunwind/src

Change-Id: I6a27dc77f057706ec2f2bb1f2e0066339b510d79
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/134770
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Auto-Submit: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/DEPS b/DEPS
index 77c2566..ef9b797 100644
--- a/DEPS
+++ b/DEPS
@@ -172,7 +172,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libunwind
   # and whatever else without interference from each other.
-  'libunwind_revision': '634c609746c6ce2d731a4e6f6285135bd84bd3a3',
+  'libunwind_revision': '84c5262b57147e9934c0a8f2302d989b44ec7093',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling llvm-libc
   # and whatever else without interference from each other.