Code review comment for lp:~lukas-kde/unity8/fix-shell-chrome

code makes mostly sense. One issue is that with this change, the position/size is only stored when an app is closed in windowed mode. This leads to the following situation:

* open an app, drag it to somewhere, close it
* restart the app, it will open where you closed it, so far so good.
* move the app around
* switch to staged mode
* close the app
* switch to windowed mode
* restart the app => it will open at the old saved position instead of the last one where it was moved to