A fix for the empty space in the Video Player Windowed mode?

[loose_unit]

This is kind of annoying, in the popout window there is a tremendous amount of free space.

I usually watch things in windowed mode and it would be nice to get more real-estate to the video and not just empty space.

It would be easy, move the "back" button to the left of the current time, go to time and bitrate options and remove the empty space.

Here is a screenshot to show you what I mean: