Disallow ScriptWrappables inside of static singletons.

third_party/WebKit/Source/wtf/ThreadingWin.cpp

 /*
  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile, 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 107 matching lines @@
 // <http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx>.
 #pragma pack(push, 8)
 typedef struct tagTHREADNAME_INFO {
   DWORD dwType;      // must be 0x1000
   LPCSTR szName;     // pointer to name (in user addr space)
   DWORD dwThreadID;  // thread ID (-1=caller thread)
   DWORD dwFlags;     // reserved for future use, must be zero
 } THREADNAME_INFO;
 #pragma pack(pop)
 
-static Mutex* atomicallyInitializedStaticMutex;
-
 namespace internal {
 
 ThreadIdentifier currentThreadSyscall() {
   return static_cast<ThreadIdentifier>(GetCurrentThreadId());
 }
 
 }  // namespace internal
 
-void lockAtomicallyInitializedStaticMutex() {
-  DCHECK(atomicallyInitializedStaticMutex);
-  atomicallyInitializedStaticMutex->lock();
-}
-
-void unlockAtomicallyInitializedStaticMutex() {
-  atomicallyInitializedStaticMutex->unlock();
-}
-
 void initializeThreading() {
   // This should only be called once.
-  DCHECK(!atomicallyInitializedStaticMutex);
-
   WTFThreadData::initialize();
 
-  atomicallyInitializedStaticMutex = new Mutex;
   initializeDates();
   // Force initialization of static DoubleToStringConverter converter variable
   // inside EcmaScriptConverter function while we are in single thread mode.
   double_conversion::DoubleToStringConverter::EcmaScriptConverter();
 }
 
 ThreadIdentifier currentThread() {
   return wtfThreadData().threadId();
 }
 
@@ skipping 226 matching lines @@
   // forever.
   if (absoluteTime - currentTime > static_cast<double>(INT_MAX) / 1000.0)
     return INFINITE;
 
   return static_cast<DWORD>((absoluteTime - currentTime) * 1000.0);
 }
 
 #if DCHECK_IS_ON()
 static bool s_threadCreated = false;
 
-bool isAtomicallyInitializedStaticMutexLockHeld() {
-  return atomicallyInitializedStaticMutex &&
-         atomicallyInitializedStaticMutex->locked();
-}
-
 bool isBeforeThreadCreated() {
   return !s_threadCreated;
 }
 
 void willCreateThread() {
   s_threadCreated = true;
 }
 #endif
 
 }  // namespace WTF
 
 #endif  // OS(WIN)