Hook up over approximating the weak closure to the idle time handler

src/heap/incremental-marking.h

 // Copyright 2012 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_INCREMENTAL_MARKING_H_
 #define V8_HEAP_INCREMENTAL_MARKING_H_
 
 
 #include "src/execution.h"
 #include "src/heap/mark-compact.h"
@@ skipping 35 matching lines @@
   }
 
   inline bool IsStopped() { return state() == STOPPED; }
 
   INLINE(bool IsMarking()) { return state() >= MARKING; }
 
   inline bool IsMarkingIncomplete() { return state() == MARKING; }
 
   inline bool IsComplete() { return state() == COMPLETE; }
 
+  inline bool IsReadyToOverApproximateWeakClosure() const {
+    return request_type_ == OVERAPPROXIMATION;
+  }
+
   GCRequestType request_type() const { return request_type_; }
 
   bool WorthActivating();
 
   bool ShouldActivate();
 
   bool WasActivated();
 
   enum CompactionFlag { ALLOW_COMPACTION, PREVENT_COMPACTION };
 
   void Start(CompactionFlag flag = ALLOW_COMPACTION);
 
   void Stop();
 
   void MarkObjectGroups();
 
   void PrepareForScavenge();
 
   void UpdateMarkingDequeAfterScavenge();
 
   void Hurry();
 
   void Finalize();
 
   void Abort();
 
-  void OverApproximateWeakClosure();
+  void OverApproximateWeakClosure(CompletionAction action);
 
   void MarkingComplete(CompletionAction action);
 
   void Epilogue();
 
   // It's hard to know how much work the incremental marker should do to make
   // progress in the face of the mutator creating new work for it.  We start
   // of at a moderate rate of work and gradually increase the speed of the
   // incremental marker until it completes.
   // Do some marking every time this much memory has been allocated or that many
@@ skipping 157 matching lines @@
   bool weak_closure_was_overapproximated_;
 
   GCRequestType request_type_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking);
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_INCREMENTAL_MARKING_H_