Introduce wrapPersistent()/wrapCrossThreadPersistent()

third_party/WebKit/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 1046 matching lines @@
 template<typename T>
 class CrossThreadWeakPersistentThisPointer {
     STACK_ALLOCATED();
 public:
     explicit CrossThreadWeakPersistentThisPointer(T* value) : m_value(value) { }
     CrossThreadWeakPersistent<T> value() const { return m_value; }
 private:
     CrossThreadWeakPersistent<T> m_value;
 };
 
+template <typename T>
+Persistent<T> wrapPersistent(T* value)
+{
+    return Persistent<T>(value);
+}
+
+template <typename T>
+CrossThreadPersistent<T> wrapCrossThreadPersistent(T* value)
+{
+    return CrossThreadPersistent<T>(value);
+}
+
 // LEAK_SANITIZER_DISABLED_SCOPE: all allocations made in the current scope
 // will be exempted from LSan consideration.
 //
 // TODO(sof): move this to wtf/LeakAnnotations.h (LeakSanitizer.h?) once
 // wtf/ can freely call upon Oilpan functionality.
 #if defined(LEAK_SANITIZER)
 class LeakSanitizerDisableScope {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(LeakSanitizerDisableScope);
 public:
@@ skipping 136 matching lines @@
     // into it.
     //
     // TODO(sof): remove this hack once wtf/Functional.h can also work with a type like
     // CrossThreadWeakPersistent<>.
     static WeakPtr<T> unwrap(const StorageType& value) { return WeakPtr<T>(WeakReference<T>::create(value.get())); }
 };
 
 } // namespace WTF
 
 #endif