dbus: Reuse is_set() function from ScopedDBusError API.

dbus/bus.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.
 //
 // TODO(satorux):
 // - Handle "disconnected" signal.
 
 #include "dbus/bus.h"
 
 #include "base/bind.h"
@@ skipping 287 matching lines @@
   } else {
     const DBusBusType dbus_bus_type = static_cast<DBusBusType>(bus_type_);
     if (connection_type_ == PRIVATE) {
       connection_ = dbus_bus_get_private(dbus_bus_type, error.get());
     } else {
       connection_ = dbus_bus_get(dbus_bus_type, error.get());
     }
   }
   if (!connection_) {
     LOG(ERROR) << "Failed to connect to the bus: "
-               << (dbus_error_is_set(error.get()) ? error.message() : "");
+               << (error.is_set() ? error.message() : "");
     return false;
   }
   // We shouldn't exit on the disconnected signal.
   dbus_connection_set_exit_on_disconnect(connection_, false);
 
   return true;
 }
 
 void Bus::ShutdownAndBlock() {
   AssertOnDBusThread();
@@ skipping 103 matching lines @@
     return true;
   }
 
   ScopedDBusError error;
   const int result = dbus_bus_request_name(connection_,
                                            service_name.c_str(),
                                            DBUS_NAME_FLAG_DO_NOT_QUEUE,
                                            error.get());
   if (result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
     LOG(ERROR) << "Failed to get the ownership of " << service_name << ": "
-               << (dbus_error_is_set(error.get()) ? error.message() : "");
+               << (error.is_set() ? error.message() : "");
     return false;
   }
   owned_service_names_.insert(service_name);
   return true;
 }
 
 bool Bus::ReleaseOwnership(const std::string& service_name) {
   DCHECK(connection_);
   // dbus_bus_request_name() is a blocking call.
   AssertOnDBusThread();
@@ skipping 387 matching lines @@
 }
 
 void Bus::OnDispatchStatusChangedThunk(DBusConnection* connection,
                                        DBusDispatchStatus status,
                                        void* data) {
   Bus* self = static_cast<Bus*>(data);
   self->OnDispatchStatusChanged(connection, status);
 }
 
 }  // namespace dbus