MD WebUI: Make cr-lazy-render get() synchronous

chrome/browser/resources/md_history/history_toolbar.js

Index: chrome/browser/resources/md_history/history_toolbar.js
diff --git a/chrome/browser/resources/md_history/history_toolbar.js b/chrome/browser/resources/md_history/history_toolbar.js
index c3cc51fd65b7f68a3c95e030d3a6b5242003783e..23c71de7a3bb669a2ba80286ca119425d7803e99 100644
--- a/chrome/browser/resources/md_history/history_toolbar.js
+++ b/chrome/browser/resources/md_history/history_toolbar.js
@@ -100,13 +100,12 @@ Polymer({
 
   /** @private */
   onInfoButtonTap_: function() {
-    this.$.syncNotice.get().then(function(dropdown) {
-      dropdown.positionTarget = this.$$('#info-button-icon');
-      // It is possible for this listener to trigger while the dialog is
-      // closing. Ensure the dialog is fully closed before reopening it.
-      if (dropdown.style.display == 'none')
-        dropdown.open();
-    }.bind(this));
+    var dropdown = this.$.syncNotice.get();
+    dropdown.positionTarget = this.$$('#info-button-icon');
+    // It is possible for this listener to trigger while the dialog is
+    // closing. Ensure the dialog is fully closed before reopening it.
+    if (dropdown.style.display == 'none')
+      dropdown.open();
   },
 
   onClearSelectionTap_: function() {