Add IPC plumbing code for Quota API

content/browser/renderer_host/quota_dispatcher_host.h

+// Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_
+#define CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_
+
+#include "base/basictypes.h"
+#include "content/browser/browser_message_filter.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageQuotaType.h"
+
+class GURL;
+
+class QuotaDispatcherHost : public BrowserMessageFilter {
+ public:
+  ~QuotaDispatcherHost();
+  bool OnMessageReceived(const IPC::Message& message, bool* message_was_ok);
+
+ private:
+  void OnQueryStorageUsageAndQuota(
+      int request_id,
+      const GURL& origin_url,
+      WebKit::WebStorageQuotaType type);
+  void OnRequestStorageQuota(
+      int request_id,
+      const GURL& origin_url,
+      WebKit::WebStorageQuotaType type,
+      int64 requested_size);
+};
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_