62   GetStatusHelper(SystemState* system_state, string* errmsg) {  in GetStatusHelper()  argument
66     if (!is_success_ && errmsg)  in GetStatusHelper()
67       *errmsg = "Failed to get a status update from the update engine";  in GetStatusHelper()
93   const Time* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
94     GetStatusHelper raw(system_state(), errmsg);  in GetValue()
112   const double* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
113     GetStatusHelper raw(system_state(), errmsg);  in GetValue()
118       if (errmsg) {  in GetValue()
119         *errmsg = StringPrintf("Invalid progress value received: %f",  in GetValue()
145   const Stage* GetValue(TimeDelta /* timeout */, string* errmsg) override;
166                                      string* errmsg) {  in GetValue()  argument
167   GetStatusHelper raw(system_state(), errmsg);  in GetValue()
175   if (errmsg)  in GetValue()
176     *errmsg = string("Unknown update status: ") + raw.update_status();  in GetValue()
187   const string* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
188     GetStatusHelper raw(system_state(), errmsg);  in GetValue()
205   const int64_t* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
206     GetStatusHelper raw(system_state(), errmsg);  in GetValue()
211       if (errmsg)  in GetValue()
212         *errmsg = string("Invalid payload size: %" PRId64, raw.payload_size());  in GetValue()
235   const Time* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
239       if (errmsg)  in GetValue()
240         *errmsg = "Update completed time could not be read";  in GetValue()
247       if (errmsg)  in GetValue()
248         *errmsg = "Update completed time more recent than current time";  in GetValue()
265   const string* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
269       if (errmsg)  in GetValue()
270         *errmsg = "No current channel";  in GetValue()
286   const string* GetValue(TimeDelta /* timeout */, string* errmsg) override {  in GetValue()  argument
290       if (errmsg)  in GetValue()
291         *errmsg = "No new channel";  in GetValue()