Updating trunk VERSION from 3457.0 to 3458.0

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

Change-Id: Iac2d8e016f55f31b210e1e737f9f9d4258299480
Reviewed-on: https://chromium-review.googlesource.com/1098206Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566702}

chrome/VERSION

 MAJOR=69
 MINOR=0
-BUILD=3457
+BUILD=3458
 PATCH=0