The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/df4d79807643681b9bff15aa6dd7558230aed583

commit df4d79807643681b9bff15aa6dd7558230aed583
Author: ortuno <ortuno@chromium.org>
Date: Fri Apr 08 02:33:35 2016

bluetooth: Remove indicator only when there are no more devices connected

Before, if multiple devices were connected and we disconnected from one
we would remove the indicator even though a device could still be connected.

BUG= 599281 

Review URL: https://codereview.chromium.org/1848663002

Cr-Commit-Position: refs/heads/master@{#385942}

[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/chrome/browser/ui/tabs/tab_utils.cc
[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/content/browser/bluetooth/bluetooth_dispatcher_host.cc
[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/content/browser/bluetooth/bluetooth_dispatcher_host.h
[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/content/browser/web_contents/web_contents_impl.cc
[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/content/browser/web_contents/web_contents_impl.h
[modify] https://crrev.com/df4d79807643681b9bff15aa6dd7558230aed583/content/public/browser/web_contents.h