Explicitly declare temporary cooked frames state

src/v8threads.h

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 61 matching lines @@
   // In the following two lists there is always at least one object on the list.
   // The first object is a flying anchor that is only there to simplify linking
   // and unlinking.
   // Head of linked list of free states.
   static ThreadState* free_anchor_;
   // Head of linked list of states in use.
   static ThreadState* in_use_anchor_;
 };
 
 
+// Defined in top.h
+class ThreadLocalTop;
+
+
+class ThreadVisitor {
+ public:
+  // ThreadLocalTop may be only available during this call.
+  virtual void VisitThread(ThreadLocalTop* top) = 0;
+
+ protected:
+  virtual ~ThreadVisitor() {}
+};
+
+
 class ThreadManager : public AllStatic {
  public:
   static void Lock();
   static void Unlock();
 
   static void ArchiveThread();
   static bool RestoreThread();
   static void FreeThreadResources();
   static bool IsArchived();
 
   static void Iterate(ObjectVisitor* v);
+  static void IterateThreads(ThreadVisitor* v);
   static void MarkCompactPrologue(bool is_compacting);
   static void MarkCompactEpilogue(bool is_compacting);
   static bool IsLockedByCurrentThread() { return mutex_owner_.IsSelf(); }
 
   static int CurrentId();
   static void AssignId();
   static bool HasId();
 
   static void TerminateExecution(int thread_id);
 
@@ skipping 32 matching lines @@
 
   bool keep_going_;
   int sleep_ms_;
 
   static ContextSwitcher* singleton_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8THREADS_H_