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

chrome/browser/resources/md_history/synced_device_manager.js

Index: chrome/browser/resources/md_history/synced_device_manager.js
diff --git a/chrome/browser/resources/md_history/synced_device_manager.js b/chrome/browser/resources/md_history/synced_device_manager.js
index e887a0ef7ad85f7acb5237e54a391a690f0f35b4..ee13d41931d783f8257606afdf6730312090619a 100644
--- a/chrome/browser/resources/md_history/synced_device_manager.js
+++ b/chrome/browser/resources/md_history/synced_device_manager.js
@@ -134,14 +134,13 @@ Polymer({
   },
 
   onToggleMenu_: function(e) {
-    this.$.menu.get().then(function(menu) {
-      menu.toggleMenu(e.detail.target, e.detail.tag);
-      if (menu.menuOpen) {
-        md_history.BrowserService.getInstance().recordHistogram(
-            SYNCED_TABS_HISTOGRAM_NAME, SyncedTabsHistogram.SHOW_SESSION_MENU,
-            SyncedTabsHistogram.LIMIT);
-      }
-    });
+    var menu = this.$.menu.get();

[michaelpg, 2016/09/16 23:18:40]

/** @type {CrSharedMenuElement} */

[tsergeant, 2016/09/19 00:39:18]

Done.

+    menu.toggleMenu(e.detail.target, e.detail.tag);
+    if (menu.menuOpen) {
+      md_history.BrowserService.getInstance().recordHistogram(
+          SYNCED_TABS_HISTOGRAM_NAME, SyncedTabsHistogram.SHOW_SESSION_MENU,
+          SyncedTabsHistogram.LIMIT);
+    }
   },
 
   onOpenAllTap_: function() {