Updating trunk VERSION from 4344.0 to 4345.0

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

Change-Id: I162df2f95b19ca770048835a8839ffdeea69bc0e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2571754Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#833415}

chrome/VERSION

 MAJOR=89
 MINOR=0
-BUILD=4344
+BUILD=4345
 PATCH=0