Bluetooth: do not change tray menu to say Disconnecting
Clicking on a Bluetooth item in the tray no longer disconnects, so
don't show a Disconnecting... message that will never be fulfilled.
BUG=175640
TEST=-Dchromeos=1 on Ubuntu, chrome --enable-experimental-bluetooth,
connect to the Fake Device and then click on it again
R=jennyz@chromium.org
Review URL: https://chromiumcodereview.appspot.com/
14420003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@196438 0039d316-1c4b-4281-b951-d872f2087c98