Support _NET_WM_STATE_FOCUSED (LP #904806)
+_NET_WM_STATE_FOCUSED indicates whether the window's decorations are drawn in an
+active state. Clients MUST regard it as a read-only hint. It cannot be set at
+map time or changed via a _NET_WM_STATE client message. The window given by
+_NET_ACTIVE_WINDOW will usually have this hint, but at times other windows may
+as well, if they have a strong association with the active window and will be
+considered as a unit with it by the user. Clients that modify the appearance of
+internal elements when a toplevel has keyboard focus SHOULD check for the
+availability of this state in _NET_SUPPORTED and, if it is available,
+use it in preference to tracking focus via FocusIn events. By doing so they will
+match the window decorations and accurately reflect the intentions of the Window
+Manager.
[1] http://cgit.freedesktop.org/xdg/xdg-specs/commit/?id=e34d84a17341bb82af38fb84c6c070bb58b6d5b5
XWMQA Test: lp:~smspillaz/+junk/net-wm-state-focused-test
Merges : lp:~smspillaz/compiz-core/compiz-core.fix_904806v2