gr-revision-parents: Add missing import for gr-commit-info & gr-button

Release-Notes: skip
Change-Id: Ie334f6ef3ce5604c70aac7b691612f4a453e7fca
diff --git a/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents.ts b/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents.ts
index 9cf5423..2dbbd26 100644
--- a/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents.ts
+++ b/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents.ts
@@ -3,6 +3,8 @@
  * Copyright 2023 Google LLC
  * SPDX-License-Identifier: Apache-2.0
  */
+import '../gr-commit-info/gr-commit-info';
+import '../../shared/gr-button/gr-button';
 import {customElement, state} from 'lit/decorators.js';
 import {css, html, HTMLTemplateResult, LitElement} from 'lit';
 import {resolve} from '../../../models/dependency';
diff --git a/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents_test.ts b/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents_test.ts
index b9aa63d..d3b46ff 100644
--- a/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents_test.ts
+++ b/polygerrit-ui/app/elements/change/gr-revision-parents/gr-revision-parents_test.ts
@@ -167,7 +167,7 @@
        The diff below may not be meaningful and may<br/>
        even be hiding relevant changes.
        <a href="/Documentation/user-review-ui.html#hazardous-rebases">Learn more</a>
-       </p><p><gr-button link="">Show details</gr-button></p></div></div>`
+       </p><p><gr-button aria-disabled="false" link="" role="button" tabindex="0">Show details</gr-button></p></div></div>`
     );
   });
 
@@ -183,7 +183,7 @@
             The diff below may not be meaningful and may<br/>
             even be hiding relevant changes.
             <a href="/Documentation/user-review-ui.html#hazardous-rebases">Learn more</a>
-            </p><p><gr-button link="">Show details</gr-button></p></div></div>`
+            </p><p><gr-button aria-disabled="false" link="" role="button" tabindex="0">Show details</gr-button></p></div></div>`
     );
   });
 
@@ -235,7 +235,7 @@
        The diff below may not be meaningful and may<br/>
        even be hiding relevant changes.
        <a href="/Documentation/user-review-ui.html#hazardous-rebases">Learn more</a>
-       </p><p><gr-button link="">Show details</gr-button></p></div></div>`
+       </p><p><gr-button aria-disabled="false" link="" role="button" tabindex="0">Show details</gr-button></p></div></div>`
     );
   });
 });