Add the new window item to the Files.app's context menu on the launcher.

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager.js b/chrome/browser/resources/file_manager/js/file_manager.js
index 08e892eaf10f70fc9f44e15fd700d93ed74fced3..10428fb3e4e1df09baf22d19951b51b3a72ce9e5 100644
--- a/chrome/browser/resources/file_manager/js/file_manager.js
+++ b/chrome/browser/resources/file_manager/js/file_manager.js
@@ -625,7 +625,7 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
         Commands.newFolderCommand, this, this.directoryModel_);
 
     CommandUtil.registerCommand(doc, 'newwindow',
-        Commands.newWindowCommand, this);
+        Commands.newWindowCommand, this, this.directoryModel_);
 
     CommandUtil.registerCommand(doc, 'change-default-app',
         Commands.changeDefaultAppCommand, this);
@@ -790,9 +790,8 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
    * @private
    */
   FileManager.prototype.initStrings_ = function(callback) {
-    chrome.fileBrowserPrivate.getStrings(function(strings) {
-      loadTimeData.data = strings;
-      this.loadTimeDataAvailable = true;
+    chrome.storage.local.get('strings', function(items) {

[yoshiki, 2013/06/27 10:25:40]

If Files.app is launched via chrome://files (it means background.js is not
loaded), we can't fetch the string. Is this change necessary for this patch?

[mtomasz, 2013/06/27 10:26:57]

Good catch. I'll fix it. We need the strings here, to add the context menu to
the launcher.

[mtomasz, 2013/06/27 12:03:09]

Done.

+      loadTimeData.data = items['strings'];
       callback();
     });
   };