[MD settings] use arrow-forward to switch direction in rtl

chrome/browser/resources/settings/a11y_page/a11y_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="/i18n_setup.html">
 <link rel="import" href="/settings_shared_css.html">
 
 <if expr="chromeos">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-toggle-button/paper-toggle-button.html">
 <link rel="import" href="/a11y_page/manage_a11y_page.html">
 <link rel="import" href="/settings_page/settings_animated_pages.html">
@@ skipping 12 matching lines @@
           <paper-toggle-button id="optionsInMenuToggle"
               checked="{{prefs.settings.a11y.enable_menu.value}}">
           </paper-toggle-button>
         </div>
         <div id="subpage-trigger" class="settings-box two-line"
             on-tap="onManageAccessibilityFeaturesTap_" actionable>
           <div class="start">
             $i18n{manageAccessibilityFeatures}
             <div class="secondary">$i18n{moreFeaturesLinkDescription}</div>
           </div>
-          <button class="icon-arrow-right" is="paper-icon-button-light">
+          <button class="icon-subpage-arrow" is="paper-icon-button-light">

[Dan Beam, 2016/10/04 02:08:39]

i meant class="subpage-arrow" (i.e. drop the "icon-")

[dschuyler, 2016/10/04 18:38:45]

Done.

           </button>
         </div>
       </neon-animatable>
       <template is="dom-if" route-path="/manageAccessibility">
         <settings-subpage
             associated-control="[[$$('#subpage-trigger')]]"
             page-title="$i18n{manageAccessibilityFeatures}">
           <settings-manage-a11y-page prefs="{{prefs}}">
           </settings-manage-a11y-page>
         </settings-subpage>
       </template>
     </settings-animated-pages>
 </if>
 
 <if expr="not chromeos">
     <div class="settings-box first two-line" on-tap="onMoreFeaturesTap_"
         actionable>
       <div class="start">
         $i18n{moreFeaturesLink}
         <div class="secondary">$i18n{a11yWebStore}</div>
       </div>
       <button class="icon-external" is="paper-icon-button-light"></button>
     </div>
 </if>
 
   </template>
   <script src="a11y_page.js"></script>
 </dom-module>