Accessibility fixes for quick unlock settings.

chrome/browser/resources/settings/people_page/people_page.html

 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/icon.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
@@ skipping 173 matching lines @@
           <div class="settings-box single-column">
             <settings-checkbox pref="{{prefs.settings.enable_screen_lock}}"
                 label="$i18n{enableScreenlock}">
             </settings-checkbox>
           </div>
         </template>
 
         <template is="dom-if" if="[[quickUnlockEnabled_]]">
           <div class="settings-box two-line" actionable
                on-tap="onConfigureLockTap_">
-            <div class="middle">
-              <div>$i18n{lockScreenTitle}</div>
+            <div class="start">
+              $i18n{lockScreenTitle}
               <div class="secondary">
                 [[getPasswordState_(hasPin,
                                     prefs.settings.enable_screen_lock.value)]]
               </div>
             </div>
+            <button class="subpage-arrow" is="paper-icon-button-light"></button>
           </div>
         </template>
 
         <template is="dom-if" if="[[easyUnlockAllowed_]]">
           <div class="settings-box">
             <div class="middle">
               <div>$i18n{easyUnlockSectionTitle}</div>
               <div class="secondary">
                 <template is="dom-if" if="[[!easyUnlockEnabled_]]">
                   $i18n{easyUnlockSetupIntro}
@@ skipping 132 matching lines @@
 
 <if expr="chromeos">
     <template is="dom-if" if="[[easyUnlockEnabled_]]">
       <easy-unlock-turn-off-dialog id="easyUnlockTurnOffDialog">
       </easy-unlock-turn-off-dialog>
     </template>
 </if>
   </template>
   <script src="people_page.js"></script>
 </dom-module>