[heap] Make sure that we transition to MARKING when we are finalize SWEEPING.

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/cancelable-task.h"
 #include "src/execution.h"
 #include "src/heap/heap.h"
@@ skipping 50 matching lines @@
   bool finalize_marking_completed() const {
     return finalize_marking_completed_;
   }
 
   void SetWeakClosureWasOverApproximatedForTesting(bool val) {
     finalize_marking_completed_ = val;
   }
 
   inline bool IsStopped() { return state() == STOPPED; }
 
+  inline bool IsSweeping() { return state() == SWEEPING; }
+
   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_ == FINALIZATION && !finalize_marking_completed_;
   }
 
@@ skipping 47 matching lines @@
   // After this many steps we increase the marking/allocating factor.
   static const intptr_t kMarkingSpeedAccellerationInterval = 1024;
   // This is how much we increase the marking/allocating factor by.
   static const intptr_t kMarkingSpeedAccelleration = 2;
   static const intptr_t kMaxMarkingSpeed = 1000;
 
   // This is the upper bound for how many times we allow finalization of
   // incremental marking to be postponed.
   static const size_t kMaxIdleMarkingDelayCounter = 3;
 
+  void FinalizeSweeping();
+
   void OldSpaceStep(intptr_t allocated);
 
   intptr_t Step(intptr_t allocated, CompletionAction action,
                 ForceMarkingAction marking = DO_NOT_FORCE_MARKING,
                 ForceCompletionAction completion = FORCE_COMPLETION);
 
   inline void RestartIfNotMarking() {
     if (state_ == COMPLETE) {
       state_ = MARKING;
       if (FLAG_trace_incremental_marking) {
@@ skipping 149 matching lines @@
   GCRequestType request_type_;
 
   IncrementalMarkingJob incremental_marking_job_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking);
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_INCREMENTAL_MARKING_H_