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diff --git a/chrome/browser/renderer_host/database_permission_request.h b/chrome/browser/renderer_host/database_permission_request.h
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+++ b/chrome/browser/renderer_host/database_permission_request.h
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+// Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_DATABASE_PERMISSION_REQUEST_H_
+#define CHROME_BROWSER_RENDERER_HOST_DATABASE_PERMISSION_REQUEST_H_
+
+#include "base/ref_counted.h"
+#include "base/scoped_ptr.h"
+#include "base/string16.h"
+
+class Task;
+
+// This class is fully threadsafe.
+class DatabasePermissionRequest
+    : public base::RefCountedThreadSafe<DatabasePermissionRequest> {
+ public:
+  DatabasePermissionRequest(const string16& origin,
+                            const string16& database_name,
+                            Task* on_allow,
+                            Task* on_block);
+  ~DatabasePermissionRequest();
+
+  const string16& origin() const { return origin_; }
+  const string16& database_name() const { return database_name_; }
+
+  // Start the permission request process.
+  void RequestPermission();
+
+ private:
+  // Called on the UI thread to pop up UI to request permission to open the
+  // database.
+  void RequestPermissionUI();
+
+  // Info to provide the user while asking for permission.
+  const string16 origin_;
+  const string16 database_name_;
+
+  // Set on IO, possibly release()ed on UI, destroyed on IO or UI.
+  scoped_ptr<Task> on_allow_;
+  scoped_ptr<Task> on_block_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(DatabasePermissionRequest);
+};
+
+#endif  // CHROME_BROWSER_RENDERER_HOST_DATABASE_PERMISSION_REQUEST_H_