last_percent_      88 ash/system/chromeos/brightness/tray_brightness.cc   double last_percent_;
last_percent_     126 ash/system/chromeos/brightness/tray_brightness.cc   last_percent_ = percent;
last_percent_     166 ash/system/chromeos/brightness/tray_brightness.cc   slider_->SetValue(static_cast<float>(last_percent_ / 100.0));