Updating trunk VERSION from 3414.0 to 3415.0

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

Change-Id: Id5ae0d575523bc1deaca09d20088aceefbed3a39
Reviewed-on: https://chromium-review.googlesource.com/1034218Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554663}

chrome/VERSION

 MAJOR=68
 MINOR=0
-BUILD=3414
+BUILD=3415
 PATCH=0