33     public static final int UNSET = -1;  field in CameraPerformanceTracker
40     private long mAppStartTime = UNSET;
41     private long mAppResumeTime = UNSET;
42     private long mModeSwitchStartTime = UNSET;
45     private long mFirstPreviewFrameLatencyColdStart = UNSET;
46     private long mFirstPreviewFrameLatencyWarmStart = UNSET;
48     private long mModeSwitchDuration = UNSET;
72                 sInstance.mFirstPreviewFrameLatencyWarmStart = UNSET;  in onEvent()
79                 if (sInstance.mFirstPreviewFrameLatencyColdStart == UNSET) {  in onEvent()
89                 if (sInstance.mModeSwitchStartTime != UNSET) {  in onEvent()
91                     sInstance.mModeSwitchStartTime = UNSET;  in onEvent()
102                 == UNSET ? "UNSET" : sInstance.mModeSwitchDuration));  in onEvent()
104                 == UNSET ? "UNSET" : sInstance.mFirstPreviewFrameLatencyColdStart));  in onEvent()
106                 == UNSET ? "UNSET" : sInstance.mFirstPreviewFrameLatencyWarmStart));  in onEvent()
120             return UNSET;  in getColdStartLatency()
134             return UNSET;  in getWarmStartLatency()
148             return UNSET;  in getModeSwitchDuration()