MD Settings: Use a browser proxy from the languages page. Re-enable test.

chrome/browser/resources/settings/languages_page/languages_page.js

Index: chrome/browser/resources/settings/languages_page/languages_page.js
diff --git a/chrome/browser/resources/settings/languages_page/languages_page.js b/chrome/browser/resources/settings/languages_page/languages_page.js
index 499164b8ee049be06ca08a3736f6abd6a8145cbe..e6ab30e44b6b6146c9805bf781e61b6f7e8287f9 100644
--- a/chrome/browser/resources/settings/languages_page/languages_page.js
+++ b/chrome/browser/resources/settings/languages_page/languages_page.js
@@ -81,6 +81,14 @@ Polymer({
     },
   },
 
+  /** @private {?settings.LanguagesBrowserProxy} */
+  browserProxy_: null,
+
+  /** @override */
+  attached: function() {
+    this.browserProxy_ = settings.LanguagesBrowserProxyImpl.getInstance();
+  },
+
   /**
    * Stamps and opens the Add Languages dialog, registering a listener to
    * disable the dialog's dom-if again on close.
@@ -190,7 +198,8 @@ Polymer({
       return;
 
     // Set the input method.
-    this.languageHelper.setCurrentInputMethod(e.model.item.id);
+    this.browserProxy_.getInputMethodPrivate().setCurrentInputMethod(
+        e.model.item.id);
   },
 
   /**
@@ -200,7 +209,8 @@ Polymer({
    * @private
    */
   onInputMethodOptionsTap_: function(e) {
-    this.languageHelper.openInputMethodOptions(e.model.item.id);
+    this.browserProxy_.getInputMethodPrivate().openOptionsPage(
+        e.model.item.id);
   },
 // </if>
 
@@ -259,7 +269,7 @@ Polymer({
     // We don't support unchecking this checkbox. TODO(michaelpg): Ask for a
     // simpler widget.
     assert(e.target.checked);
-    this.languageHelper.setProspectiveUILanguage(
+    this.browserProxy_.setProspectiveUILanguage(
         this.detailLanguage_.language.code);
 
     this.closeMenuSoon_();