GitLab

Hide the example combo-box selector if there is only one example to show.

Part of Views Documentation effort.

Change-Id: I9019148e54d7162bfb8b95a88c515504f130e7d1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2153307
Commit-Queue: Allen Bauer <kylixrd@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760990}