Move tracking of ActiveScriptWrappables to V8PerIsolateData.

third_party/WebKit/Source/platform/heap/ThreadState.h

 /*
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 504 matching lines @@
     void leaveStaticReferenceRegistrationDisabledScope();
 #endif
 
     void resetHeapCounters();
     void increaseAllocatedObjectSize(size_t);
     void decreaseAllocatedObjectSize(size_t);
     void increaseMarkedObjectSize(size_t);
 
     void callThreadShutdownHooks();
 
+    v8::Isolate* isolate() const { return m_isolate; }
+
 private:
     enum SnapshotType {
         HeapSnapshot,
         FreelistSnapshot
     };
 
     ThreadState(bool perThreadHeapEnabled);
     ~ThreadState();
 
     NO_SANITIZE_ADDRESS void copyStackUntilSafePointScope();
@@ skipping 164 matching lines @@
 
 template<> class ThreadStateFor<AnyThread> {
     STATIC_ONLY(ThreadStateFor);
 public:
     static ThreadState* state() { return ThreadState::current(); }
 };
 
 } // namespace blink
 
 #endif // ThreadState_h