Add permission request creator class.

chrome/browser/managed_mode/permission_request_creator.h

+// Copyright 2014 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_MANAGED_MODE_PERMISSION_REQUEST_CREATOR_H_
+#define CHROME_BROWSER_MANAGED_MODE_PERMISSION_REQUEST_CREATOR_H_
+
+#include <string>
+
+#include "base/callback_forward.h"
+
+class PermissionRequestCreator {
+ public:
+  virtual ~PermissionRequestCreator() {}
+
+  virtual void CreatePermissionRequest(
+      const std::string& url_requested,
+      const base::Closure& callback) = 0;
+};
+
+#endif  // CHROME_BROWSER_MANAGED_MODE_PERMISSION_REQUEST_CREATOR_H_