Disable ability to show passwords when running in Metro.

chrome/browser/resources/options/password_manager_list.js

Index: chrome/browser/resources/options/password_manager_list.js
diff --git a/chrome/browser/resources/options/password_manager_list.js b/chrome/browser/resources/options/password_manager_list.js
index fe6f004af83403ffbddb04bcbf45881bc84e749a..9442dee28a5c1afe69d9a4f7fb7e3c3dc0bedfd8 100644
--- a/chrome/browser/resources/options/password_manager_list.js
+++ b/chrome/browser/resources/options/password_manager_list.js
@@ -279,7 +279,12 @@ cr.define('options.passwordManager', function() {
 
     /** @override */
     createItem: function(entry) {
-      return new PasswordListItem(this.dataModel, entry, this.showPasswords_);
+      var showPasswords = this.showPasswords_;
+
+      if (loadTimeData.getBoolean('disableShowPasswords'))
+        showPasswords = false;
+
+      return new PasswordListItem(this.dataModel, entry, showPasswords);
     },
 
     /** @override */