Updating trunk VERSION from 3627.0 to 3628.0

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

Change-Id: I8f2763c3e8a603e785eb976ead4058da8fc38faf
Reviewed-on: https://chromium-review.googlesource.com/c/1357334Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612919}

chrome/VERSION

 MAJOR=73
 MINOR=0
-BUILD=3627
+BUILD=3628
 PATCH=0