Remove ibus dependency from PanelService.

chrome/browser/chromeos/input_method/candidate_window_controller.h

 // 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.
 //
 // This file implements the input method candidate window used on Chrome OS.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_
 
 #include "base/basictypes.h"
 
 namespace chromeos {
 namespace input_method {
 
+class IBusController;
+
 // CandidateWindowController is used for controlling the input method
 // candidate window. Once the initialization is done, the controller
 // starts monitoring signals sent from the the background input method
 // daemon, and shows and hides the candidate window as neeeded. Upon
 // deletion of the object, monitoring stops and the view used for
 // rendering the candidate view is deleted.
 class CandidateWindowController {
  public:
   class Observer {
    public:
     virtual ~Observer() {}
 
     virtual void CandidateWindowOpened() = 0;
     virtual void CandidateWindowClosed() = 0;
   };
 
   virtual ~CandidateWindowController() {}
 
   // Initializes the candidate window. Returns true on success.
   virtual bool Init() = 0;
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Gets an instance of CandidateWindowController. Caller has to delete the
   // returned object.
-  static CandidateWindowController* CreateCandidateWindowController();
+  static CandidateWindowController* CreateCandidateWindowController(
+      IBusController* controller);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_