Expose Durable Storage API to script

public/platform/modules/quota/WebDurableStorageDispatcher.h

Index: public/platform/modules/quota/WebDurableStorageDispatcher.h
diff --git a/public/platform/modules/quota/WebDurableStorageDispatcher.h b/public/platform/modules/quota/WebDurableStorageDispatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..c8ffd5cbf24e72f8aba0dbb6e044c67720180834
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+++ b/public/platform/modules/quota/WebDurableStorageDispatcher.h
@@ -0,0 +1,30 @@
+// 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 WebDurableStorageDispatcher_h
+#define WebDurableStorageDispatcher_h
+
+namespace blink {
+
+class WebURL;
+
+enum WebDurableStoragePermission { Default, Denied, Granted };
+
+class WebSomeCallbacks {
+public:
+    virtual void setPromptResult(WebDurableStoragePermission) = 0;
+    virtual ~WebSomeCallbacks() { }
+};
+
+class WebDurableStorageDispatcher {
+public:
+    virtual void requestPermission(const WebURL& url, WebSomeCallbacks* callbacks) { }
+
+// protected:
+    virtual ~WebDurableStorageDispatcher() { }
+};
+
+} // namespace blink
+
+#endif // WebDurableStorageDispatcher_h