Fix some more for= usage.

chrome/browser/resources/options/sync_section.html

Index: chrome/browser/resources/options/sync_section.html
diff --git a/chrome/browser/resources/options/sync_section.html b/chrome/browser/resources/options/sync_section.html
index 2448d8c8b8a9c179e097abdfd2b423cd1c49b500..83fbc8e63eb0c24d831d51b7e01f4ac1d9e7cd08 100644
--- a/chrome/browser/resources/options/sync_section.html
+++ b/chrome/browser/resources/options/sync_section.html
@@ -31,19 +31,19 @@
     </div>
 
 <if expr="chromeos">
-    <div class="checkbox" public-account-visibility="hidden">
-      <span class="controlled-setting-with-label">
-        <input id="enable-screen-lock" type="checkbox"
+    <div class="checkbox controlled-setting-with-label"
+        public-account-visibility="hidden">
+      <label>
+        <input type="checkbox"
             metric="Options_ScreenLock"
             pref="settings.enable_screen_lock">
-        <span>
-          <label for="enable-screen-lock" i18n-content="enableScreenlock">
-          </label>
-          <span class="controlled-setting-indicator"
-              pref="settings.enable_screen_lock">
-          </span>
-        </span>
-      </span>
+       <span>
+         <span i18n-content="enableScreenlock"></span>
+         <span class="controlled-setting-indicator"
+            i18n-values="textshared:screenLockShared"
+            pref="settings.enable_screen_lock"></span>
+       </span>
+      </label>
     </div>
   </div>
 </if>  <!-- chromeos -->