Updating trunk VERSION from 3597.0 to 3598.0

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

Change-Id: I435f874d46bce46746237bbe5c60416444ca7e85
Reviewed-on: https://chromium-review.googlesource.com/c/1311261Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604378}

chrome/VERSION

 MAJOR=72
 MINOR=0
-BUILD=3597
+BUILD=3598
 PATCH=0