[Autofill Settings] Hide 'Add' button when Autofill toggle is disabled

Screenshots can be found in the bug.

Bug: 891369
Change-Id: I206d89a1118cad0f65c17ba3cafee81998e3198c
Reviewed-on: https://chromium-review.googlesource.com/1258046Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Commit-Queue: Fabio Tirelo <ftirelo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#596272}

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

@@ -49,7 +49,7 @@
       <paper-button id="addAddress"
           class="secondary-button header-aligned-button"
           on-click="onAddAddressTap_"
-          disabled$="[[!prefs.autofill.profile_enabled.value]]">
+          hidden$="[[!prefs.autofill.profile_enabled.value]]">
         $i18n{add}
       </paper-button>
     </div>

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

@@ -66,7 +66,7 @@
       <paper-button id="addCreditCard"
           class="secondary-button header-aligned-button"
           on-click="onAddCreditCardTap_"
-          disabled$="[[!prefs.autofill.credit_card_enabled.value]]">
+          hidden$="[[!prefs.autofill.credit_card_enabled.value]]">
         $i18n{add}
       </paper-button>
     </div>

chrome/test/data/webui/settings/autofill_section_test.js

@@ -175,7 +175,7 @@ cr.define('settings_autofill_section', function() {
           createAutofillSection([], {profile_enabled: {value: false}});
 
       assertFalse(section.$$('#autofillProfileToggle').disabled);
-      assertTrue(section.$$('#addAddress').disabled);
+      assertTrue(section.$$('#addAddress').hidden);
     });
 
     test('verifyAddressFields', function() {

chrome/test/data/webui/settings/payments_section_test.js

@@ -81,7 +81,7 @@ cr.define('settings_payments_section', function() {
           createPaymentsSection([], {credit_card_enabled: {value: false}});
 
       assertFalse(section.$$('#autofillCreditCardToggle').disabled);
-      assertTrue(section.$$('#addCreditCard').disabled);
+      assertTrue(section.$$('#addCreditCard').hidden);
     });
 
     test('verifyCreditCardCount', function() {