Revert 121920 - dbus: add ObjectPath type

dbus/object_path.h

Index: dbus/object_path.h
===================================================================
--- dbus/object_path.h	(revision 121922)
+++ dbus/object_path.h	(working copy)
@@ -1,46 +0,0 @@
-// Copyright (c) 2012 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 DBUS_OBJECT_PATH_H_
-#define DBUS_OBJECT_PATH_H_
-#pragma once
-
-#include <string>
-
-namespace dbus {
-
-// ObjectPath is a type used to distinguish D-Bus object paths from simple
-// strings, especially since normal practice is that these should be only
-// initialized from static constants or obtained from remote objects and no
-// assumptions about their value made.
-class ObjectPath {
- public:
-  // Permit initialization without a value for passing to
-  // dbus::MessageReader::PopObjectPath to fill in and from std::string
-  // objects.
-  //
-  // The compiler synthesised copy constructor and assignment operator are
-  // sufficient for our needs, as is implicit initialization of a std::string
-  // from a string constant.
-  ObjectPath() {}
-  explicit ObjectPath(const std::string& value) : value_(value) {}
-
-  // Retrieves value as a std::string.
-  const std::string& value() const { return value_; }
-
-  // Permit sufficient comparison to allow an ObjectPath to be used as a
-  // key in a std::map.
-  bool operator<(const ObjectPath&) const;
-
-  // Permit testing for equality, required for mocks to work and useful for
-  // observers.
-  bool operator==(const ObjectPath&) const;
-  bool operator!=(const ObjectPath&) const;
- private:
-  std::string value_;
-};
-
-}  // namespace dbus
-
-#endif  // DBUS_OBJECT_PATH_H_