MD History: Fix loading of history results in background tabs

chrome/browser/resources/md_history/list_container.js

Index: chrome/browser/resources/md_history/list_container.js
diff --git a/chrome/browser/resources/md_history/list_container.js b/chrome/browser/resources/md_history/list_container.js
index 395d3855ef86443028f3c125efc5c3763c68ef11..b6c1ba2170396571dd22206fb1e4374e269a86ab 100644
--- a/chrome/browser/resources/md_history/list_container.js
+++ b/chrome/browser/resources/md_history/list_container.js
@@ -101,7 +101,7 @@ Polymer({
     this.queryHistory(false);
   },
 
-  /** @return {HTMLElement} */
+  /** @return {Element} */
   getContentScrollTarget: function() {
     return this.getSelectedList_();
   },
@@ -283,10 +283,10 @@ Polymer({
   },
 
   /**
-   * @return {HTMLElement}
+   * @return {Element}
    * @private
    */
-  getSelectedList_: function() { return this.$.content.selectedItem; },
+  getSelectedList_: function() { return this.$$('#' + this.selectedPage_); },
 
   /** @private */
   canDeleteHistory_: function() {