| Index: src/heap/mark-compact.h | 
| diff --git a/src/heap/mark-compact.h b/src/heap/mark-compact.h | 
| index 3386b83272bfdb8572d86568fac4e3e2b3258e3a..98ad6b6df53402a8ec1e06f30eccd6393f61291f 100644 | 
| --- a/src/heap/mark-compact.h | 
| +++ b/src/heap/mark-compact.h | 
| @@ -684,6 +684,9 @@ class MarkCompactCollector { | 
| void ProcessAndClearWeakCells(); | 
| void AbortWeakCells(); | 
|  | 
| +  void ProcessAndClearTransitionArrays(); | 
| +  void AbortTransitionArrays(); | 
| + | 
| // After all reachable objects have been marked, those entries within | 
| // optimized code maps that became unreachable are removed, potentially | 
| // trimming or clearing out the entire optimized code map. | 
|  |