Updating trunk VERSION from 3772.0 to 3773.0

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

Change-Id: Ic3ed4dd70fb31fcd3f56e778ade6a1459415ad20
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1576424Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652781}

chrome/VERSION

 MAJOR=76
 MINOR=0
-BUILD=3772
+BUILD=3773
 PATCH=0