GitLab

According to UX spec, if a feature pod button is togglable and has a
detailed view, the icon click should toggle the feature and the label
click should show the detailed view.

This CL changes the behavior of Bluetooth feature pod button to follow
this rule.

UX spec: http://shortn/_U7QSE9nhSk

TEST=manual
BUG=821671

Change-Id: Ia4158975c6a0d7c409c1bacd58786223eea4567e
Reviewed-on: https://chromium-review.googlesource.com/1013130Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Tetsui Ohkubo <tetsui@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551380}