Remove calls to deprecated session_manager DBus methods

chrome/browser/chromeos/system/ash_system_tray_delegate.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 "chrome/browser/chromeos/system/ash_system_tray_delegate.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 1073 matching lines @@
     GetSystemTrayNotifier()->NotifyRefreshClock();
   }
 
   // Overridden from SessionManagerClient::Observer.
   virtual void LockScreen() OVERRIDE {
     screen_locked_ = true;
     ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
         GetUserLoginStatus());
   }
 
-  virtual void UnlockScreen() OVERRIDE {
+  virtual void ScreenIsUnlocked() OVERRIDE {
     screen_locked_ = false;
     ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
         GetUserLoginStatus());
   }
 
   // TODO(sad): Override more from PowerManagerClient::Observer here.
 
   gfx::NativeWindow GetNativeWindow() const {
     return GetNativeWindowByStatus(GetUserLoginStatus());
   }
@@ skipping 220 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegate);
 };
 
 }  // namespace
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new chromeos::SystemTrayDelegate();
 }
 
 }  // namespace chromeos