Updating trunk VERSION from 4271.0 to 4272.0

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true
TBR=govind@chromium.org

Change-Id: I42e3f16d4237ce6fd4cfbb7df8c78c5ef08f40a7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2422582Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#809173}

chrome/VERSION

 MAJOR=87
 MINOR=0
-BUILD=4271
+BUILD=4272
 PATCH=0