Add Reset() to IBusController.

chrome/browser/chromeos/input_method/ibus_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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 21 matching lines @@
   static IBusController* Create();
 
   virtual ~IBusController();
 
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Starts the system input method framework. No-op if it's already started.
   virtual bool Start() = 0;
 
+  // Resets the system input method framework. A composition text is discarded,
+  // and a candidate window is closed.
+  virtual void Reset() = 0;
+
   // Stops the system input method framework.
   virtual bool Stop() = 0;
 
   // Sets a configuration of an input method engine. Returns true if the
   // configuration is successfully set. For example, when you set
   // "engine/Mozc/history_learning_level", |section| should be "engine/Mozc",
   // and |config_name| should be "history_learning_level".
   virtual bool SetInputMethodConfig(const std::string& section,
                                     const std::string& config_name,
                                     const InputMethodConfigValue& value) = 0;
@@ skipping 27 matching lines @@
 #endif
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 // TODO(yusukes,nona): This interface does not depend on IBus actually.
 // Rename the file if needed.
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_IBUS_CONTROLLER_H_