BACKGROUND_NONE   159 ash/desktop_background/desktop_background_controller.cc       desktop_background_mode_(BACKGROUND_NONE),
BACKGROUND_NONE   195 ash/desktop_background/desktop_background_controller.cc   if (desktop_background_mode_ == BACKGROUND_NONE)
BACKGROUND_NONE   382 ash/desktop_background/desktop_background_controller.cc     case BACKGROUND_NONE: