From ed1966ac760dcd2a7e80234c81319098bcf48ecb Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Tue, 16 Feb 2016 10:30:18 +0800
Subject: [PATCH] spec: Bring back beginFrameSubscription test

---
 spec/api-browser-window-spec.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/spec/api-browser-window-spec.js b/spec/api-browser-window-spec.js
index 1c92d408c4c9..89e9b770ab20 100644
--- a/spec/api-browser-window-spec.js
+++ b/spec/api-browser-window-spec.js
@@ -478,10 +478,16 @@ describe('browser-window module', function() {
     });
   });
 
-  xdescribe('beginFrameSubscription method', function() {
+  describe('beginFrameSubscription method', function() {
     it('subscribes frame updates', function(done) {
+      let called = false;
       w.loadURL("file://" + fixtures + "/api/blank.html");
       w.webContents.beginFrameSubscription(function(data) {
+        // This callback might be called twice.
+        if (called)
+          return;
+        called = true;
+
         assert.notEqual(data.length, 0);
         w.webContents.endFrameSubscription();
         done();