[MD History] Focus the search bar on load.

chrome/browser/resources/md_history/app.js

Index: chrome/browser/resources/md_history/app.js
diff --git a/chrome/browser/resources/md_history/app.js b/chrome/browser/resources/md_history/app.js
index c9a41b995f83e9280ce30cd22621e6bd7d05473c..8b02ad7e7faddc2becec25ad34cfb8c7ecc1e377 100644
--- a/chrome/browser/resources/md_history/app.js
+++ b/chrome/browser/resources/md_history/app.js
@@ -142,6 +142,13 @@ Polymer({
   },
 
   /**
+   * Focuses the search bar in the toolbar.
+   */
+  focusToolbarSearchField: function() {
+    this.$.toolbar.showSearchField();
+  },
+
+  /**
    * Fired when the user presses 'More from this site'.
    * @param {{detail: {domain: string}}} e
    */
@@ -189,7 +196,7 @@ Polymer({
    */
   onCommand_: function(e) {
     if (e.command.id == 'find-command' || e.command.id == 'slash-command')
-      this.$.toolbar.showSearchField();
+      this.focusToolbarSearchField();
     if (e.command.id == 'delete-command')
       this.deleteSelected();
   },
@@ -271,7 +278,7 @@ Polymer({
    * @return {string}
    * @private
    */
-  getSelectedPage_(selectedPage, items) {
+  getSelectedPage_: function(selectedPage, items) {
     return selectedPage;
   },