Roll v8/ a9cdaea34..a7273c4f2 (303 commits)

https://chromium.googlesource.com/v8/v8.git/+log/a9cdaea34fc7..a7273c4f2947

Version 12.1.198

Created with:
  roll-dep v8

Change-Id: I9b6824ad820a5968544ae1935b0b5ba586eaf08c
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/114250
Auto-Submit: Lei Zhang <thestig@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
diff --git a/DEPS b/DEPS
index 8cec23b..02e58d6 100644
--- a/DEPS
+++ b/DEPS
@@ -206,7 +206,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling v8
   # and whatever else without interference from each other.
-  'v8_revision': 'a9cdaea34fc73930ad6fd587cf90c5680caba864',
+  'v8_revision': 'a7273c4f2947e344c1ab71b63761b5ed5be65a0a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling zlib
   # and whatever else without interference from each other.