Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/DartPersistentValue.h

 /*
  * Copyright (C) 2012 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 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef HTMLInputElementFileSystem_h
-#define HTMLInputElementFileSystem_h
+#ifndef DartPersistentValue_h
+#define DartPersistentValue_h
 
-#include "modules/filesystem/EntriesCallback.h"
+#include "bindings/core/dart/DartIsolateDestructionObserver.h"
+#include "wtf/Noncopyable.h"
+#include "wtf/RefPtr.h"
+#include <dart_api.h>
 
 namespace blink {
 
-class HTMLInputElement;
-class ExecutionContext;
+class DartPersistentValue : public DartIsolateDestructionObserver {
+    WTF_MAKE_NONCOPYABLE(DartPersistentValue);
+public:
+    explicit DartPersistentValue(Dart_Handle value);
+    ~DartPersistentValue();
 
-class HTMLInputElementFileSystem {
-public:
-    static EntryHeapVector webkitEntries(ExecutionContext*, HTMLInputElement&);
+    Dart_PersistentHandle value() const { return m_value; }
+    void clear();
 
 private:
-    HTMLInputElementFileSystem();
-    ~HTMLInputElementFileSystem();
+    Dart_PersistentHandle m_value;
 };
 
-} // namespace blink
+}
 
-#endif // HTMLInputElementFileSystem_h
+#endif // DartPersistentValue_h