Revert 236417 "Makes FocusdController honor focus change if no p..."

Revert 236417 "Makes FocusdController honor focus change if no p..."

> Makes FocusdController honor focus change if no previously active window
> 
> With desktop aura when a Window is made active the focus restore code
> kicks in and attempts to restore focus to the Window that had focus
> prior to losing activation. FocusController ignores requests to change
> focus if during the activation phase focus changed. Together this
> means the window that initiated the focus and activation change does
> not get focus.
> 
> Fix is to allow the focus change through if there was previously no
> active window.
> 
> BUG=321042
> TEST=covered by test now
> R=ben@chromium.org
> 
> Review URL: https://codereview.chromium.org/75933005

TBR=sky@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=236879

[sky, 2013-11-23 00:03:13]

Committed patchset #1 manually as r236879.