Wait for the focus event because checking focus status.
BrowserWindow.show gives focus to the window but there is
a moment where the window is shown but does not have the
focus yet. And the test was failing at this moment.
* test: move more BrowserWindow specs to main runner
* more movey
* maximized/minimized events don't work on linux?
* try for better printing of non-equal bounds
* add a timeout when checking window bounds after resize
* add a timeout when reading content size
* setTimeout...?
* try a smaller window size