Incrementing VERSION to 64.0.3268.2

TBR=dimu@chromium.org

Change-Id: I58ef8d00fccc87c721f1d619676360dcdff13cd8
Reviewed-on: https://chromium-review.googlesource.com/769353
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3268@{#2}
Cr-Branched-From: 2af1c4f37d23500cc3e71fe058ba4efd55ed35c6-refs/heads/master@{#516147}
1 file changed