[Bug 1770686] Re: Hide livepatch widgets in flavors without an online account panel in gnome-control-center

[Andrea Azzarone]

@sill2100 sorry about that. I tested 0.96.24.32.5 both in vanilla bionic
and in xubuntu bionic. I performed the following verification steps as
per description:

Xubuntu:
"
[Test Case]
1. Start xubuntu (Bionic)
2. Open software-properties-gtk
3. Go to "Updates" tab
4. Make sure no Livepatch UI is displayed
"

Vanilla ubuntu:
Xubuntu:
"
[Test Case]
1. Start ubuntu (Bionic)
2. Open software-properties-gtk
3. Go to "Updates" tab
4. Make sure Livepatch UI is displayed
"

Screenshot attached for xubuntu.

** Attachment added: "Screenshot from 2018-09-06 13-31-58.png"
   https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1770686/+attachment/5185576/+files/Screenshot%20from%202018-09-06%2013-31-58.png

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https://bugs.launchpad.net/bugs/1770686

Title:
  Hide livepatch widgets in flavors without an online account panel in
  gnome-control-center

Status in software-properties package in Ubuntu:
  Fix Released
Status in software-properties source package in Bionic:
  Fix Committed

Bug description:
  
  [Impact]
  Some distributions ship software-properties-gtk but not gnome-control-center. Considering that Livepatch strictly depends on the online account panel in gnome-control-center we should not show the option to enable Livepatch if those distributions, otherwise enabling Livepatch will fail and it will seem buggy.

  [Test Case]
  1. Start xubuntu (Bionic)
  2. Open software-properties-gtk
  3. Go to "Updates" tab
  4. Make sure no Livepatch UI is displayed

  [Regression Potential] 
  Please make sure the Livepatch UI is correctly displayed in vanilla Bionic.

  [Original Bug Report]

  Unfortunately Livepatch strictly depends on the online account panel
  in gnome-control-center. We should hide the checkbutton in flavors
  (e.g. Xubuntu) that do not ship gnome-control-center and/or the online
  account panel.

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