Updating trunk VERSION from 3615.0 to 3616.0

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

Change-Id: Ieef0d3ae87ccaffd92c6bcd37fac45e73208bac2
Reviewed-on: https://chromium-review.googlesource.com/c/1341649Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609174}

chrome/VERSION

 MAJOR=72
 MINOR=0
-BUILD=3615
+BUILD=3616
 PATCH=0