[MD History] Fix item selection when deleting via menu item.

chrome/test/data/webui/md_history/history_list_test.js

Index: chrome/test/data/webui/md_history/history_list_test.js
diff --git a/chrome/test/data/webui/md_history/history_list_test.js b/chrome/test/data/webui/md_history/history_list_test.js
index 2df6533405169c327f85a3a744d09bed6384e31d..6bf4ebcf11268bf8e2b172907958db21a9f8965c 100644
--- a/chrome/test/data/webui/md_history/history_list_test.js
+++ b/chrome/test/data/webui/md_history/history_list_test.js
@@ -410,9 +410,18 @@ cr.define('md_history.history_list_test', function() {
                 'https://www.google.com',
                 'https://en.wikipedia.org',
               ], element.historyData_.map(item => item.title));
+
+              // Deletion should deselect all.
+              assertDeepEquals(
+                  [false, false, false],
+                  items.slice(0, 3).map(i => i.selected));
+
               done();
             });
           });
+
+          MockInteractions.tap(items[1].$.checkbox);
+          MockInteractions.tap(items[3].$.checkbox);
           MockInteractions.tap(items[1].$['menu-button']);
           app.$.history.$.sharedMenu.get();
           MockInteractions.tap(app.$.history.$$('#menuRemoveButton'));