GitLab

The IPH bubble for the Discover feed should only be shown if the NTP
has been created with the Discover feed. This can be determined by
checking if the named guide for the Discover feed menu button has been
created.

Bug: 1132757
Change-Id: I0bbf35fba8fb49fcb080ce581f3bf953d56ce0f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2434910
Commit-Queue: Adam Trudeau-Arcaro <adamta@google.com>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Reviewed-by: edchin <edchin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812821}