DOM Storage: Add renderer-process IPC code.

webkit/api/src/StorageAreaProxy.h

+/*
+ * 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 APPLE 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 APPLE 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
+
+#if ENABLE(DOM_STORAGE)
+
+#include "StorageArea.h"
+
+namespace WebKit { class WebStorageArea; }
+
+namespace WebCore {
+
+    class StorageAreaProxy : public StorageArea {
+    public:
+        StorageAreaProxy(WebKit::WebStorageArea* storageArea);
+        virtual ~StorageAreaProxy();
+
+        // The HTML5 DOM Storage API
+        virtual unsigned length() const;
+        virtual String key(unsigned index, ExceptionCode& ec) const;
+        virtual String getItem(const String& key) const;
+        virtual void setItem(const String& key, const String& value, ExceptionCode& ec, Frame* sourceFrame);
+        virtual void removeItem(const String& key, Frame* sourceFrame);
+        virtual void clear(Frame* sourceFrame);
+        virtual bool contains(const String& key) const;
+
+    private:
+        OwnPtr<WebKit::WebStorageArea> m_storageArea;
+    };
+
+} // namespace WebCore
+
+#endif // ENABLE(DOM_STORAGE)
+
+#endif // StorageAreaProxy_h