Updating trunk VERSION from 4235.0 to 4236.0

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

Change-Id: Iaa7a183f8465f7306d20abe4579001bd6ac86850
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2358891Reviewed-by: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#798472}

chrome/VERSION

 MAJOR=86
 MINOR=0
-BUILD=4235
+BUILD=4236
 PATCH=0