Minor comment on the chrome://settings/passwords

This is a follow-up to https://codereview.chromium.org/2805683002/

BUG=706310
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2837793003
Cr-Commit-Position: refs/heads/master@{#467282}

chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html

@@ -125,9 +125,9 @@
                     value="[[getEmptyPassword_(item.numCharactersInPassword)]]">
                 </input>
               </template>
-              <template is="dom-if" if="{{item.federationText}}">
+              <template is="dom-if" if="[[item.federationText]]">
                 <span class="selectable text-elide">
-                  {{item.federationText}}
+                  [[item.federationText]]
                 </span>
               </template>
             </div>