MD Settings: Allow searching the lock screen subpage.

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

 <link rel="import" href="chrome://resources/html/polymer.html">
 
 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_expand_button/cr_expand_button.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/html/cr/ui/focus_without_ink.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/util.html">
@@ skipping 172 matching lines @@
                 [[syncStatus.statusText]]
               </div>
             </div>
             <button class="subpage-arrow" is="paper-icon-button-light"
                 aria-label="$i18n{sync}"
                 aria-describedby="syncSecondary"></button>
           </div>
         </template>
 
 <if expr="chromeos">
-        <div class="settings-box two-line" actionable
-             on-tap="onConfigureLockTap_">
+        <div id="lock-screen-subpage-trigger" class="settings-box two-line"
+            actionable on-tap="onConfigureLockTap_">
           <div class="start">
             $i18n{lockScreenTitle}
             <div class="secondary" id="lockScreenSecondary">
               [[getPasswordState_(hasPin,
                                   prefs.settings.enable_screen_lock.value)]]
             </div>
           </div>
-          <button id="lockScreenSubpageTrigger" class="subpage-arrow"
+          <button class="subpage-arrow"
               is="paper-icon-button-light" aria-label="$i18n{lockScreenTitle}"
               aria-describedby="lockScrenSecondary"></button>
         </div>
 </if>
 
         <div id="manage-other-people-subpage-trigger"
             class="settings-box" on-tap="onManageOtherPeople_" actionable>
           <div class="start">$i18n{manageOtherPeople}</div>
           <button class="subpage-arrow" is="paper-icon-button-light"
               aria-label="$i18n{manageOtherPeople}"></button>
@@ skipping 22 matching lines @@
       <template is="dom-if" route-path="/syncSetup"
           no-search$="[[!isAdvancedSyncSettingsVisible_(syncStatus)]]">
         <settings-subpage
             associated-control="[[$$('#sync-status')]]"
             page-title="$i18n{syncPageTitle}"
             no-search$="[[!isAdvancedSyncSettingsVisible_(syncStatus)]]">
           <settings-sync-page></settings-sync-page>
         </settings-subpage>
       </template>
 <if expr="chromeos">
-      <template is="dom-if" route-path="/lockScreen" no-search>
-        <settings-subpage page-title="$i18n{lockScreenTitle}">
+      <template is="dom-if" route-path="/lockScreen">
+        <settings-subpage page-title="$i18n{lockScreenTitle}"
+            associated-control="[[$$('#lock-screen-subpage-trigger')]]">
           <settings-lock-screen
             prefs="{{prefs}}">
           </settings-lock-screen>
         </settings-subpage>
       </template>
       <template is="dom-if" if="[[fingerprintUnlockEnabled_]]">
         <template is="dom-if" route-path="/lockScreen/fingerprint" no-search>
           <settings-subpage page-title="$i18n{lockScreenFingerprintTitle}">
             <settings-fingerprint-list></settings-fingerprint-list>
           </settings-subpage>
@@ skipping 76 matching lines @@
 
     <template is="dom-if" if="[[showImportDataDialog_]]" restamp>
       <settings-import-data-dialog prefs="{{prefs}}"
           on-close="onImportDataDialogClosed_">
       </settings-import-data-dialog>
     </template>
 
   </template>
   <script src="people_page.js"></script>
 </dom-module>