UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce the problem:
1. Open up the Desktop media picker UI in chrome on a windows machine

What is the expected behavior?

What went wrong?
The picker UI behaves differently than it does on a mac. On mac the picker UI is a different window and on windows it is inside the window. This causes a problem if the window is small to begin with. 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 56.0.2924.87  Channel: n/a
OS Version: OS X 10.11.6
Flash Version: Shockwave Flash 25.0 r0

Due to this we are getting a different experience for our customers with our product. On mac the picker acts a separate window and so the user can move it out of the way or type into the chat client we provide asking questions. On Windows they no longer can type while the picker is up and also if the screen is small it will become a weird UI. What I would like to see if that on windows the picker UI pops out into a different window like mac that way the UX can be the same for both windows and mac.