Updating trunk VERSION from 3265.0 to 3266.0

TBR=amineer@chromium.org

Change-Id: Ic56af482a6f436db0111344833b1cd7d2c16421c
Reviewed-on: https://chromium-review.googlesource.com/764649Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515821}

chrome/VERSION

 MAJOR=64
 MINOR=0
-BUILD=3265
+BUILD=3266
 PATCH=0