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diff --git a/chromium/third_party/WebKit/Source/web/StorageAreaProxy.h b/chromium/third_party/WebKit/Source/web/StorageAreaProxy.h
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+/*
+ * Copyright (C) 2009 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. 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 StorageAreaProxy_h
+#define StorageAreaProxy_h
+
+#include "core/storage/StorageArea.h"
+
+namespace WebKit {
+class WebStorageArea;
+class WebStorageNamespace;
+}
+
+namespace WebCore {
+
+class ExceptionState;
+class Frame;
+class KURL;
+class Page;
+class SecurityOrigin;
+class Storage;
+
+class StorageAreaProxy : public StorageArea {
+public:
+    StorageAreaProxy(PassOwnPtr<WebKit::WebStorageArea>, StorageType);
+    virtual ~StorageAreaProxy();
+
+    // The HTML5 DOM Storage API
+    virtual unsigned length(ExceptionState&, Frame* sourceFrame);
+    virtual String key(unsigned index, ExceptionState&, Frame* sourceFrame);
+    virtual String getItem(const String& key, ExceptionState&, Frame* sourceFrame);
+    virtual void setItem(const String& key, const String& value, ExceptionState&, Frame* sourceFrame);
+    virtual void removeItem(const String& key, ExceptionState&, Frame* sourceFrame);
+    virtual void clear(ExceptionState&, Frame* sourceFrame);
+    virtual bool contains(const String& key, ExceptionState&, Frame* sourceFrame);
+
+    virtual bool canAccessStorage(Frame*);
+
+    virtual size_t memoryBytesUsedByCache();
+
+    static void dispatchLocalStorageEvent(
+            const String& key, const String& oldValue, const String& newValue,
+            SecurityOrigin*, const KURL& pageURL, WebKit::WebStorageArea* sourceAreaInstance, bool originatedInProcess);
+    static void dispatchSessionStorageEvent(
+            const String& key, const String& oldValue, const String& newValue,
+            SecurityOrigin*, const KURL& pageURL, const WebKit::WebStorageNamespace&,
+            WebKit::WebStorageArea* sourceAreaInstance, bool originatedInProcess);
+
+private:
+    static bool isEventSource(Storage*, WebKit::WebStorageArea* sourceAreaInstance);
+
+    OwnPtr<WebKit::WebStorageArea> m_storageArea;
+    StorageType m_storageType;
+    mutable bool m_canAccessStorageCachedResult;
+    mutable Frame* m_canAccessStorageCachedFrame;
+};
+
+} // namespace WebCore
+
+#endif // StorageAreaProxy_h