Cleanup: Remove unneeded forward declarations from chrome/browser/chromeos.

chrome/browser/chromeos/dbus/dbus_thread_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/ref_counted.h"
 
 namespace base {
 class Thread;
 };
 
 namespace dbus {
 class Bus;
 };
 
 namespace chromeos {
 
 class BluetoothAdapterClient;
 class BluetoothManagerClient;
 class CrosDisksClient;
-class CrosDBusService;
 class PowerManagerClient;
 class SessionManagerClient;
 class SensorsClient;
 class SpeechSynthesizerClient;
 
 // DBusThreadManager manages the D-Bus thread, the thread dedicated to
 // handling asynchronous D-Bus operations.
 //
 // This class also manages D-Bus connections and D-Bus clients, which
 // depend on the D-Bus thread to ensure the right order of shutdowns for
@@ skipping 70 matching lines @@
 
  protected:
   DBusThreadManager();
 
   DISALLOW_COPY_AND_ASSIGN(DBusThreadManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_