Adds extension events for custom dictionary load/change.

chrome/browser/chromeos/extensions/input_method_event_router.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_EXTENSIONS_INPUT_METHOD_EVENT_ROUTER_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_INPUT_METHOD_EVENT_ROUTER_H_
 
-#include <string>
-
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace chromeos {
 
 // Event router class for the input method events.
 class ExtensionInputMethodEventRouter
     : public input_method::InputMethodManager::Observer {
  public:
   explicit ExtensionInputMethodEventRouter(content::BrowserContext* context);
   ~ExtensionInputMethodEventRouter() override;
 
   // Implements input_method::InputMethodManager::Observer:
   void InputMethodChanged(input_method::InputMethodManager* manager,
                           bool show_message) override;
 
  private:
   content::BrowserContext* context_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInputMethodEventRouter);
 };
 
 }  // namespace chromeos
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_INPUT_METHOD_EVENT_ROUTER_H_