105   IRTSegmentState prevState;  in Add()  local
106   prevState.all = cookie;  in Add()
112   DCHECK_GE(segment_state_.parts.numHoles, prevState.parts.numHoles);  in Add()
124   int numHoles = segment_state_.parts.numHoles - prevState.parts.numHoles;  in Add()
133       DCHECK_GE(pScan, table_ + prevState.parts.topIndex);  in Add()
173   IRTSegmentState prevState;  in Remove()  local
174   prevState.all = cookie;  in Remove()
176   int bottomIndex = prevState.parts.topIndex;  in Remove()
179   DCHECK_GE(segment_state_.parts.numHoles, prevState.parts.numHoles);  in Remove()
218     int numHoles = segment_state_.parts.numHoles - prevState.parts.numHoles;  in Remove()
234       segment_state_.parts.numHoles = numHoles + prevState.parts.numHoles;  in Remove()