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

chrome/browser/resources/options/language_options.js

Index: chrome/browser/resources/options/language_options.js
diff --git a/chrome/browser/resources/options/language_options.js b/chrome/browser/resources/options/language_options.js
index 3ebf7d2665bf940e57089ced80f1c3b0ec0fc568..fabc6ba697d338946b4115bc66e636e67e732d3d 100644
--- a/chrome/browser/resources/options/language_options.js
+++ b/chrome/browser/resources/options/language_options.js
@@ -325,9 +325,9 @@ cr.define('options', function() {
           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);
         }