dbus: add ObjectPath type

dbus/object_proxy.cc

 // 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.
 
 #include "dbus/bus.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/string_piece.h"
 #include "base/stringprintf.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "dbus/message.h"
+#include "dbus/object_path.h"
 #include "dbus/object_proxy.h"
 #include "dbus/scoped_dbus_error.h"
 
 namespace {
 
 const char kErrorServiceUnknown[] = "org.freedesktop.DBus.Error.ServiceUnknown";
 
 // Used for success ratio histograms. 1 for success, 0 for failure.
 const int kSuccessRatioHistogramMaxValue = 2;
 
 // Gets the absolute signal name by concatenating the interface name and
 // the signal name. Used for building keys for method_table_ in
 // ObjectProxy.
 std::string GetAbsoluteSignalName(
     const std::string& interface_name,
     const std::string& signal_name) {
   return interface_name + "." + signal_name;
 }
 
 // An empty function used for ObjectProxy::EmptyResponseCallback().
 void EmptyResponseCallbackBody(dbus::Response* unused_response) {
 }
 
 }  // namespace
 
 namespace dbus {
 
 ObjectProxy::ObjectProxy(Bus* bus,
                          const std::string& service_name,
-                         const std::string& object_path,
+                         const ObjectPath& object_path,
                          int options)
     : bus_(bus),
       service_name_(service_name),
       object_path_(object_path),
       filter_added_(false),
       ignore_service_unknown_errors_(
           options & IGNORE_SERVICE_UNKNOWN_ERRORS) {
 }
 
 ObjectProxy::~ObjectProxy() {
@@ skipping 368 matching lines @@
 void ObjectProxy::LogMethodCallFailure(
     const base::StringPiece& error_name,
     const base::StringPiece& error_message) const {
   if (ignore_service_unknown_errors_ && error_name == kErrorServiceUnknown)
     return;
   LOG(ERROR) << "Failed to call method: " << error_name
              << ": " << error_message;
 }
 
 }  // namespace dbus