D24660: [x11] Add support for _GTK_FRAME_EXTENTS

cblack added a comment.


  I've been using this patch for a while, and here are some things I've noticed:
  
  - Thumbnails include window shadow; this appears fine in alt-tab switcher but on panel switcher thumbnails they're drawn with a solid background.
  - Snapping can be a bit odd as CSD windows can sometimes not realize that their size has changed until after you let go of the mouse
  - The shadows don't really fare well when you turn off compositing; toggling compositing while application is running does not seem to be an expected use case in GTK.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D24660

To: zzag, #kwin
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