chromeos: call GetIdleTime from power manager client

chrome/browser/idle_chromeos.cc

 // Copyright (c) 2011 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 "chrome/browser/idle.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "chrome/browser/chromeos/cros/cros_library.h"
-#include "chrome/browser/chromeos/cros/power_library.h"
+#include "chrome/browser/chromeos/dbus/dbus_thread_manager.h"
+#include "chrome/browser/chromeos/dbus/power_manager_client.h"
 #if !defined(USE_AURA)
 #include "chrome/browser/screensaver_window_finder_gtk.h"
 #endif
 
 void CalculateIdleStateNotifier(unsigned int idle_treshold,
                                 IdleCallback notify,
                                 int64_t idle_time_s) {
   if (idle_time_s >= (int64_t)idle_treshold) {
     notify.Run(IDLE_STATE_IDLE);
   } else if (idle_time_s < 0) {
     notify.Run(IDLE_STATE_UNKNOWN);
   } else {
     notify.Run(IDLE_STATE_ACTIVE);
   }
 }
 
 void CalculateIdleState(unsigned int idle_threshold, IdleCallback notify) {
   if (CheckIdleStateIsLocked()) {
     notify.Run(IDLE_STATE_LOCKED);
     return;
   }
-  chromeos::CalculateIdleTimeCallback* callback =
-      new base::Callback<void(int64_t)>(base::Bind(&CalculateIdleStateNotifier,
-                                        idle_threshold,
-                                        notify));
-  chromeos::CrosLibrary::Get()->GetPowerLibrary()->CalculateIdleTime(callback);
+  chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
+      CalculateIdleTime(base::Bind(&CalculateIdleStateNotifier, idle_threshold,
+                                   notify));
 }
 
 bool CheckIdleStateIsLocked() {
   // Usually the screensaver is used to lock the screen, so we do not need to
   // check if the workstation is locked.
 #if defined(USE_AURA)
   return false;
 #else
   return ScreensaverWindowFinder::ScreensaverWindowExists();
 #endif
 }