Remove ThreadHeap::allHeaps()

third_party/WebKit/Source/platform/heap/Heap.cpp

 /*
  * 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 138 matching lines @@
     : m_regionTree(WTF::makeUnique<RegionTree>()),
       m_heapDoesNotContainCache(WTF::wrapUnique(new HeapDoesNotContainCache)),
       m_safePointBarrier(WTF::makeUnique<SafePointBarrier>()),
       m_freePagePool(WTF::wrapUnique(new PagePool)),
       m_markingStack(CallbackStack::create()),
       m_postMarkingCallbackStack(CallbackStack::create()),
       m_globalWeakCallbackStack(CallbackStack::create()),
       m_ephemeronStack(CallbackStack::create()) {
   if (ThreadState::current()->isMainThread())
     s_mainThreadHeap = this;
-
-  MutexLocker locker(ThreadHeap::allHeapsMutex());
-  allHeaps().insert(this);
 }
 
 ThreadHeap::~ThreadHeap() {
-  MutexLocker locker(ThreadHeap::allHeapsMutex());
-  allHeaps().remove(this);
-}
-
-RecursiveMutex& ThreadHeap::allHeapsMutex() {
-  DEFINE_THREAD_SAFE_STATIC_LOCAL(RecursiveMutex, mutex, (new RecursiveMutex));
-  return mutex;
-}
-
-HashSet<ThreadHeap*>& ThreadHeap::allHeaps() {
-  DEFINE_STATIC_LOCAL(HashSet<ThreadHeap*>, heaps, ());
-  return heaps;
 }
 
 void ThreadHeap::attach(ThreadState* thread) {
   MutexLocker locker(m_threadAttachMutex);
   m_threads.insert(thread);
 }
 
 void ThreadHeap::detach(ThreadState* thread) {
   ASSERT(ThreadState::current() == thread);
   bool isLastThread = false;
@@ skipping 401 matching lines @@
   ProcessHeap::decreaseTotalMarkedObjectSize(m_stats.markedObjectSize());
 
   m_stats.reset();
   for (ThreadState* state : m_threads)
     state->resetHeapCounters();
 }
 
 ThreadHeap* ThreadHeap::s_mainThreadHeap = nullptr;
 
 }  // namespace blink