Move UserInfo to user_manager.

components/user_manager/empty_user_info.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 COMPONENTS_USER_MANAGER_EMPTY_USER_INFO_H_
+#define COMPONENTS_USER_MANAGER_EMPTY_USER_INFO_H_
+
+#include <string>
+
+#include "base/strings/string16.h"
+#include "components/user_manager/user_info.h"
+#include "components/user_manager/user_manager_export.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace user_manager {
+
+// Trivial implementation of UserInfo interface which triggers
+// NOTIMPLEMENTED() for each method.
+class USER_MANAGER_EXPORT EmptyUserInfo : public UserInfo {
+ public:
+  EmptyUserInfo();
+  virtual ~EmptyUserInfo();
+
+  // UserInfo:
+  virtual base::string16 GetDisplayName() const OVERRIDE;
+  virtual base::string16 GetGivenName() const OVERRIDE;
+  virtual std::string GetEmail() const OVERRIDE;
+  virtual std::string GetUserID() const OVERRIDE;
+  virtual const gfx::ImageSkia& GetImage() const OVERRIDE;
+
+ private:
+  const gfx::ImageSkia null_image_;
+
+  DISALLOW_COPY_AND_ASSIGN(EmptyUserInfo);
+};
+
+}  // namespace user_manager
+
+#endif  // COMPONENTS_USER_MANAGER_EMPTY_USER_INFO_H_