Various ASan exemptions to allow Oilpan pre-sweep poisoning of unmarkeds.

Source/platform/heap/Handle.h

 /*
  * Copyright (C) 2014 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 35 matching lines @@
 
 template<typename T> class HeapTerminatedArray;
 
 class PersistentNode {
 public:
     explicit PersistentNode(TraceCallback trace)
         : m_trace(trace)
     {
     }
 
+    NO_SANITIZE_ADDRESS

[haraken, 2015/05/01 15:12:32]

This looks valid.

     bool isHeapObjectAlive() { return m_trace; }
 
     virtual ~PersistentNode()
     {
         ASSERT(isHeapObjectAlive());
         m_trace = nullptr;
     }
 
     // Ideally the trace method should be virtual and automatically dispatch
     // to the most specific implementation. However having a virtual method
@@ skipping 51 matching lines @@
         MutexLocker m_locker;
     };
 };
 
 // Base class for persistent handles. RootsAccessor specifies which list to
 // link resulting handle into. Owner specifies the class containing trace
 // method.
 template<typename RootsAccessor, typename Owner>
 class PersistentBase : public PersistentNode {
 public:
+    NO_SANITIZE_ADDRESS

[haraken, 2015/05/01 15:12:31]

This looks valid.

     ~PersistentBase()
     {
         typename RootsAccessor::Lock lock;
         ASSERT(m_roots == RootsAccessor::roots()); // Check that the thread is using the same roots list.
         ASSERT(isHeapObjectAlive());
         ASSERT(m_next->isHeapObjectAlive());
         ASSERT(m_prev->isHeapObjectAlive());
         m_next->m_prev = m_prev;
         m_prev->m_next = m_next;
     }
@@ skipping 941 matching lines @@
 template<typename T>
 struct ParamStorageTraits<RawPtr<T>> : public PointerParamStorageTraits<T*, blink::IsGarbageCollectedType<T>::value> {
 };
 
 template<typename T>
 PassRefPtr<T> adoptRef(blink::RefCountedGarbageCollected<T>*) = delete;
 
 } // namespace WTF
 
 #endif