Updating trunk VERSION from 4050.0 to 4051.0

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

Change-Id: I7ccf7edc680e15c50bf02da8fa47c89b8e6778e0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2040402Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#738831}

chrome/VERSION

 MAJOR=82
 MINOR=0
-BUILD=4050
+BUILD=4051
 PATCH=0