[MD settings] align toggle buttons in rtl

chrome/browser/resources/settings/settings_vars_css.html

 <link rel="import" href="chrome://resources/cr_elements/shared_vars_css.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/color.html">
 
 <!-- Common css variables for Material Design settings. -->
 <style is="custom-style">
   /* We keep our vars in sort order, though some vars must be defined prior to
    * others. The --settings-* vars are defined explicitly prior to the --paper-*
    * and --iron-* vars.
    */
   :root {
@@ skipping 24 matching lines @@
       font-weight: 400;
       margin-top: 4px;
     };
     --settings-separator-line: var(--cr-separator-line);
 
     --settings-title-bar-background-color: var(--google-blue-700);
     --settings-title-bar-color: rgb(255, 255, 255);
     --settings-title-search-color: rgb(192, 199, 205);
     --settings-toggle-bar-size: {
       height: 12px;
-      width: 28px;
+      left: 4px;
+      width: 24px;
     };
     --settings-toggle-button-size: {
       height: 16px;
       width: 16px;
     };
     --settings-toggle-color: var(--google-blue-500);
   }
 
   :root {
     --checkbox-margin-start: 2px;
@@ skipping 13 matching lines @@
     --paper-item: {
       font-size: inherit;
     };
     --paper-radio-button-label-color: inherit;
     --paper-radio-group-item-padding: 0;
 
     --paper-toggle-button-checked-bar: var(--settings-toggle-bar-size);
     --paper-toggle-button-checked-bar-color: var(--settings-toggle-color);
     --paper-toggle-button-checked-button: var(--settings-toggle-button-size);
     --paper-toggle-button-checked-button-color: var(--settings-toggle-color);
+    --paper-toggle-button-label-spacing: 0;
     --paper-toggle-button-unchecked-bar: var(--settings-toggle-bar-size);
     --paper-toggle-button-unchecked-button: var(--settings-toggle-button-size);
   }
 </style>