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diff --git a/deps/v8/src/heap/minor-gc-job.h b/deps/v8/src/heap/minor-gc-job.h
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+++ b/deps/v8/src/heap/minor-gc-job.h
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+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_HEAP_MINOR_GC_JOB_H_
+#define V8_HEAP_MINOR_GC_JOB_H_
+
+#include "src/common/globals.h"
+#include "src/tasks/cancelable-task.h"
+
+namespace v8 {
+namespace internal {
+
+class Heap;
+class Isolate;
+
+// The scavenge job uses platform tasks to perform a young generation
+// Scavenge garbage collection. The job posts a foreground task.
+class MinorGCJob {
+ public:
+  MinorGCJob() V8_NOEXCEPT = default;
+
+  void ScheduleTaskIfNeeded(Heap* heap);
+
+  static size_t YoungGenerationTaskTriggerSize(Heap* heap);
+
+ private:
+  class Task;
+
+  static bool YoungGenerationSizeTaskTriggerReached(Heap* heap);
+
+  bool task_pending_ = false;
+};
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_HEAP_MINOR_GC_JOB_H_