Alerting the user when the provided date for credit card is passed, not save the card, and not clos…

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

Index: chrome/browser/resources/settings/passwords_and_forms_page/credit_card_edit_dialog.html
diff --git a/chrome/browser/resources/settings/passwords_and_forms_page/credit_card_edit_dialog.html b/chrome/browser/resources/settings/passwords_and_forms_page/credit_card_edit_dialog.html
index a31c7968e4a27abcebd0e1d77aa8ec5afbd91fc6..204fa47b78d028cd97915a51a19d64a757431c99 100644
--- a/chrome/browser/resources/settings/passwords_and_forms_page/credit_card_edit_dialog.html
+++ b/chrome/browser/resources/settings/passwords_and_forms_page/credit_card_edit_dialog.html
@@ -58,6 +58,11 @@
           </select>
           <span class="md-select-underline"></span>
         </span>
+        <span style="color:red;">

[Mathieu, 2016/10/27 15:49:56]

this should probably be a class in the above <style> block

[Parastoo, 2016/10/27 16:08:40]

Acknowledged.

[Moe, 2016/10/27 18:31:11]

Don't use hex or color names in Polymer. Use variables defined in
src/third_party/polymer/v1_0/components-chromium/paper-styles/color.html
e.g.,
color: var(--google-red-100) or whatever the mocks say.

Also, I don't think you need to use dom-if template here for such a small block
of markup. It comes with an overhead. use 'hidden' attr to hide/show the <span>.
If you do, however, use dom-if wrap the entire <span> in it. why leaving an
empty <span> in the markup if there's no error to show?

and last, use one-way binding
(https://www.polymer-project.org/1.0/docs/devguide/data-binding#binding-annota...)
when the property is used in a read-only way.

[Parastoo, 2016/10/27 22:18:57]

Done.

[Parastoo, 2016/10/27 22:18:57]

Done.

+          <template is="dom-if" if="{{dateExpired_}}">
+            $i18n{creditCardExpired}
+          </template>
+        </span>
       </div>
       <div class="button-container">
         <paper-button id="cancelButton" class="cancel-button"