MD Bookmarks: Scroll and select items that are added to the main list

chrome/browser/resources/md_bookmarks/dialog_focus_manager.js

Index: chrome/browser/resources/md_bookmarks/dialog_focus_manager.js
diff --git a/chrome/browser/resources/md_bookmarks/dialog_focus_manager.js b/chrome/browser/resources/md_bookmarks/dialog_focus_manager.js
index 5b3879d72a2cd6bd36981149bd1be1dca4831066..ccc69f07ef566ea9830b9b033af07641c8696f44 100644
--- a/chrome/browser/resources/md_bookmarks/dialog_focus_manager.js
+++ b/chrome/browser/resources/md_bookmarks/dialog_focus_manager.js
@@ -47,6 +47,15 @@ cr.define('bookmarks', function() {
       showFn();
     },
 
+    /**
+     * Clears the stored focus element, so that focus does not restore when all
+     * dialogs are closed.
+     */
+    clearFocus: function() {
+      this.previousFocusElement_ = null;
+      this.previousMouseFocus_ = false;
+    },
+
     /** @private */
     updatePreviousFocus_: function() {
       this.previousFocusElement_ = this.getFocusedElement_();
@@ -80,7 +89,7 @@ cr.define('bookmarks', function() {
 
         assert(this.dialogs_.delete(dialog));
         // Focus the originally focused element if there are no more dialogs.
-        if (!this.dialogs_.size) {
+        if (!this.dialogs_.size && this.previousFocusElement_) {
           this.previousFocusElement_.focus();
           if (this.previousMouseFocus_) {
             bookmarks.MouseFocusBehavior.addMouseFocusClass(