[IME] Supports options page for each IME instead of single options page for each IME extension.

chrome/browser/resources/options/language_options.js

 // 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.
 
 // TODO(kochi): Generalize the notification as a component and put it
 // in js/cr/ui/notification.js .
 
 cr.define('options', function() {
   /** @const */ var OptionsPage = options.OptionsPage;
   /** @const */ var LanguageList = options.LanguageList;
@@ skipping 307 matching lines @@
 
         var input = element.querySelector('input');
         input.inputMethodId = inputMethod.id;
         var span = element.querySelector('span');
         span.textContent = inputMethod.displayName;
 
         if (inputMethod.optionsPage) {
           var button = document.createElement('button');
           button.textContent = loadTimeData.getString('configure');
           button.inputMethodId = inputMethod.id;
-          button.onclick = function(inputMethodId, e) {
-            chrome.send('inputMethodOptionsOpen', [inputMethodId]);
-          }.bind(this, inputMethod.id);
+          button.onclick = function(id, optionsPage, e) {
+            chrome.send('inputMethodOptionsOpen', [id, optionsPage]);
+          }.bind(this, inputMethod.id, inputMethod.optionsPage);
           element.appendChild(button);
         }
 
         // Listen to user clicks.
         input.addEventListener('click',
                                this.handleCheckboxClick_.bind(this));
         inputMethodList.appendChild(element);
       }
     },
 
@@ skipping 954 matching lines @@
 
   LanguageOptions.onComponentManagerInitialized = function(componentImes) {
     LanguageOptions.getInstance().appendComponentExtensionIme_(componentImes);
   };
 
   // Export
   return {
     LanguageOptions: LanguageOptions
   };
 });