registered_observer_   32 chrome/browser/net/pref_proxy_config_tracker_impl.cc   if (registered_observer_ && base_service_.get())
registered_observer_  119 chrome/browser/net/pref_proxy_config_tracker_impl.cc   if (!registered_observer_ && base_service_.get()) {
registered_observer_  121 chrome/browser/net/pref_proxy_config_tracker_impl.cc     registered_observer_ = true;
registered_observer_   77 chrome/browser/net/pref_proxy_config_tracker_impl.h   bool registered_observer_;