1 files changed, 5 insertions, 4 deletions
diff --git a/deps/v8/src/heap/incremental-marking-job.h b/deps/v8/src/heap/incremental-marking-job.h
index ed133e88e5b..63c700be4f0 100644
--- a/deps/v8/src/heap/incremental-marking-job.h
+++ b/deps/v8/src/heap/incremental-marking-job.h
@@ -28,15 +28,15 @@ class IncrementalMarkingJob final {
 
   double CurrentTimeToTask(Heap* heap) const;
 
+ private:
+  class Task;
+  static constexpr double kDelayInSeconds = 10.0 / 1000.0;
+
   bool IsTaskPending(TaskType task_type) const {
     return task_type == TaskType::kNormal ? normal_task_pending_
                                           : delayed_task_pending_;
   }
 
- private:
-  class Task;
-  static constexpr double kDelayInSeconds = 10.0 / 1000.0;
-
   void SetTaskPending(TaskType task_type, bool value) {
     if (task_type == TaskType::kNormal) {
       normal_task_pending_ = value;
@@ -45,6 +45,7 @@ class IncrementalMarkingJob final {
     }
   }
 
+  base::Mutex mutex_;
   double scheduled_time_ = 0.0;
   bool normal_task_pending_ = false;
   bool delayed_task_pending_ = false;