Code review comment for lp:~brandontschaefer/unity/alt+tab-mouse

Jenkins failures are due to an undefined member:

/tmp/buildd/unity-7.0.2+13.10.20130705.1bzr3437pkg0saucy156/launcher/StandaloneSwitcher.cpp: In function 'void ThreadWidgetInit(nux::NThread*, void*)':
/tmp/buildd/unity-7.0.2+13.10.20130705.1bzr3437pkg0saucy156/launcher/StandaloneSwitcher.cpp:134:15: error: 'class unity::switcher::Controller' has no member named 'SetWorkspace'
   controller->SetWorkspace(nux::Geometry(0, 0, 900, 600), 0);
               ^