MD History: Delete button in the toolbar allows deletion of multiple history-items.

chrome/browser/resources/md_history/history_card.html

Index: chrome/browser/resources/md_history/history_card.html
diff --git a/chrome/browser/resources/md_history/history_card.html b/chrome/browser/resources/md_history/history_card.html
index 18b9cf8eb88094a121610122aa7f7828fea4aece..f04b99abdd824abaeef413f93fe8cfa0f96120c3 100644
--- a/chrome/browser/resources/md_history/history_card.html
+++ b/chrome/browser/resources/md_history/history_card.html
@@ -54,10 +54,10 @@
               website-domain="{{historyItem.domain}}"
               website-url="{{historyItem.url}}"
               starred="{{historyItem.starred}}"
-              selected="{{historyItem.selected}}"
-              timestamp="{{historyItem.time}}">
+              selected="{{historyItem.selected}}">
           </history-item>
-          <template is="dom-if" if="{{needsTimeGap_(index, historyItem)}}">
+          <template is="dom-if"
+              if="{{needsTimeGap_(index, historyItems.length)}}">
             <div id="time-gap-separator"></div>
           </template>
         </template>