Avoid checking for WTFThreadData::staticData in wtfThreadData()

third_party/WebKit/Source/wtf/WTFThreadData.cpp

 /*
  * Copyright (C) 2008, 2010 Apple 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 37 matching lines @@
   if (!WTFThreadData::staticData->isSet())
     return internal::threadStackSize();
 
   WTFThreadData& data = wtfThreadData();
   if (!data.m_threadStackSize)
     data.m_threadStackSize = internal::threadStackSize();
   return data.m_threadStackSize;
 }
 #endif
 
+void WTFThreadData::initializeOnMainThread() {
+  // WTFThreadData is used on main thread before it could possibly be used
+  // on secondary ones, so there is no need for synchronization here.
+  DCHECK(!WTFThreadData::staticData);
+  WTFThreadData::staticData = new ThreadSpecific<WTFThreadData>;
+  WTFThreadData::staticData->initializeOnMainThread();
+}
+
+void WTFThreadData::initializeOnOffThread() {
+  WTFThreadData::staticData->initializeOnOffThread();
+}
+
 }  // namespace WTF