Open input method configuration page in new tab page.

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 1e5590a2fed60f7eed5c0ede97ba15506db98043..296a9c8e0cb47731112737600ee6031dfe755965 100644
--- a/chrome/browser/resources/options/language_options.js
+++ b/chrome/browser/resources/options/language_options.js
@@ -296,6 +296,15 @@ cr.define('options', function() {
           element.appendChild(button);
         }
 
+        if (inputMethod.optionsPage) {
+          var button = document.createElement('button');
+          button.textContent = loadTimeData.getString('configure');
+          button.onclick = function(e) {
+            window.open(inputMethod.optionsPage);
+          };
+          element.appendChild(button);
+        }
+
         // Listen to user clicks.
         input.addEventListener('click',
                                this.handleCheckboxClick_.bind(this));