Updating trunk VERSION from 3928.0 to 3929.0

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

Change-Id: I5d6441a474e250fab7f15afbbb8d7c6265cda963
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1829578Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#701019}

chrome/VERSION

 MAJOR=79
 MINOR=0
-BUILD=3928
+BUILD=3929
 PATCH=0