Comment 3 for bug 1125442

I believe another example of this is when using the Chromium Hangouts extension[1]. The extension uses Chromium Panels - small windows anchored to the edge of the screen that appear on all workspaces - and those panels have the same effect. See "Panels window causes Workspace switching focus to break"[2] for more.

[1] https://chrome.google.com/webstore/detail/hangouts/nckgahadagoaajjgafhacjanaoiihapd.
[2] https://code.google.com/p/chromium/issues/detail?id=295856