1 files changed, 23 insertions, 0 deletions
diff --git a/browser/components/syncedtabs/util.js b/browser/components/syncedtabs/util.js
new file mode 100644
index 000000000..e09a1a528
--- /dev/null
+++ b/browser/components/syncedtabs/util.js
@@ -0,0 +1,23 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+this.EXPORTED_SYMBOLS = [
+  "getChromeWindow"
+];
+
+// Get the chrome (ie, browser) window hosting this content.
+function getChromeWindow(window) {
+  return window
+         .QueryInterface(Ci.nsIInterfaceRequestor)
+         .getInterface(Ci.nsIWebNavigation)
+         .QueryInterface(Ci.nsIDocShellTreeItem)
+         .rootTreeItem
+         .QueryInterface(Ci.nsIInterfaceRequestor)
+         .getInterface(Ci.nsIDOMWindow)
+         .wrappedJSObject;
+}