Updating trunk VERSION from 3773.0 to 3774.0

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

Change-Id: I411f0d4fa7f444b6a40f10332bf96e14bf76d0c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1576431Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652808}

chrome/VERSION

 MAJOR=76
 MINOR=0
-BUILD=3773
+BUILD=3774
 PATCH=0