roll_state_        21 chrome/installer/util/callback_work_item.cc   DCHECK_EQ(roll_state_, RS_UNDEFINED);
roll_state_        23 chrome/installer/util/callback_work_item.cc   roll_state_ = RS_FORWARD;
roll_state_        25 chrome/installer/util/callback_work_item.cc   roll_state_ = RS_UNDEFINED;
roll_state_        31 chrome/installer/util/callback_work_item.cc   DCHECK_EQ(roll_state_, RS_UNDEFINED);
roll_state_        33 chrome/installer/util/callback_work_item.cc   roll_state_ = RS_BACKWARD;
roll_state_        35 chrome/installer/util/callback_work_item.cc   roll_state_ = RS_UNDEFINED;
roll_state_        39 chrome/installer/util/callback_work_item.cc   DCHECK_NE(roll_state_, RS_UNDEFINED);
roll_state_        40 chrome/installer/util/callback_work_item.cc   return roll_state_ == RS_BACKWARD;
roll_state_        55 chrome/installer/util/callback_work_item.h   RollState roll_state_;