Crash while closing from tray

[adbuker]

agent_15-06-2018-10_35_20-2018-06-15.log

[adbuker]

resolved in adguard-windows/pull-requests/135

[northis]

Resolved in adguard-windows/pull-requests/195

Unfortunately, it is very difficult to catch the crash as described above. However, we have found the reason why it crashes: two parallel attemts to close non-modal child windows (Filtering log & editor) can occur simultaneously. To prevent this, now we close the windows when AG is stopping from the tray.

How to test

1. Open Filtering log & editor windows
2. Close AG from the tray.
3. Ensure, that everything is fine.
4. Check agent's log - it should contains Closing AdblockerEditorWindow & Closing FilteringLogWindow.
5. Reopen the filtering windows and stop the AG service.
6. Ensure, that the windows are closed.

[karina-archazh]

Checked.