DeactivateIncrementalWriteBarrier  736 src/incremental-marking.cc     DeactivateIncrementalWriteBarrier();
DeactivateIncrementalWriteBarrier  763 src/incremental-marking.cc   DeactivateIncrementalWriteBarrier();
DeactivateIncrementalWriteBarrier  252 src/incremental-marking.h   void DeactivateIncrementalWriteBarrier();