Fullscreen mode remains after closing a fullscreen Youtube tab

[ghost]

Did you search for similar issues before submitting this one?
Yes, found only black bar issues. Not relevant to this issue.

Describe the issue you encountered:
I watched a video on Youtube in fullscreen. The video bored me pretty soon and closed the tab by pressing COMMAND+W to close the entire tab. But Brave was stuck in fullscreen now.

Expected behavior:
I expect Brave to revert into non fullscreen mode or whatever mode I had before.

• Platform (Win7, 8, 10? macOS? Linux distro?):
  macOS 10.12 Beta (16A201w)
• Brave Version:
  Brave: 0.11.0
  Electron: 1.2.3
  libchromiumcontent: 51.0.2704.103
  V8: 5.1.281.65
  Node.js: 6.1.0
  Update Channel: dev
• Steps to reproduce:
  1. Start Brave if it's not running already.
  2. Ensure Brave is not in fullscreen mode
  3. Open Youtube or any other video service website and start watching a video
  4. Enable the fullscreen mode (Youtube asks you to do so)
  5. Close the video by using a keyboard shortcut (COMMAND+W on macOS)
• Screenshot if needed:
  
  
  
• Any related issues:
  Don't know yet.