Code review comment for lp://staging/~saviq/unity-2d/unmaximize-on-drag

> May I suggest that while you try to figure out what is that is making the drag
> not work properly you split off the part of the patch that just takes care of
> the double click and submit that for review so that it can be taken in ? It's
> already a good improvement over not having neither doubleclick nor drag.

Since my approach here needs to be revised (see Aurélien's first comment), I'm gonna
keep that on hold until then, ok?