Updating trunk VERSION from 4226.0 to 4227.0

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

Change-Id: Ie181d2ce35a867c5449d20781a5c4f8a3d2b0d06
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2342544Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#795773}

chrome/VERSION

 MAJOR=86
 MINOR=0
-BUILD=4226
+BUILD=4227
 PATCH=0