text: // Copyright 2015 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
  #define THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
  
  #include "third_party/blink/renderer/platform/heap/handle.h"
  #include "third_party/blink/renderer/platform/supplementable.h"
  
  namespace blink {
  
  class ExceptionState;
  class LocalDOMWindow;
  class StorageArea;
  
  class DOMWindowStorage final : public GarbageCollected<DOMWindowStorage>,
                                 public Supplement<LocalDOMWindow> {
   public:
    static const char kSupplementName[];
  
    static DOMWindowStorage& From(LocalDOMWindow&);
    static StorageArea* sessionStorage(LocalDOMWindow&, ExceptionState&);
    static StorageArea* localStorage(LocalDOMWindow&, ExceptionState&);
  
    explicit DOMWindowStorage(LocalDOMWindow&);
  
    StorageArea* sessionStorage(ExceptionState&) const;
    StorageArea* localStorage(ExceptionState&) const;
    StorageArea* OptionalSessionStorage() const { return session_storage_.Get(); }
    StorageArea* OptionalLocalStorage() const { return local_storage_.Get(); }
  
    void Trace(Visitor*) const override;
  
   private:
    mutable Member<StorageArea> session_storage_;
    mutable Member<StorageArea> local_storage_;
  };
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_DOM_WINDOW_STORAGE_H_
  