From f22ee0eab8010077d514d13b02edf5c736fffa90 Mon Sep 17 00:00:00 2001
From: Ryan VanderMeulen <ryanvm@gmail.com>
Date: Mon, 9 Dec 2013 15:54:27 -0500
Subject: [PATCH] Backed out changeset 772c30e9e812 (bug 944255) for
 mochitest-mc orange.

---
 browser/metro/modules/View.jsm | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/browser/metro/modules/View.jsm b/browser/metro/modules/View.jsm
index cd60b89181fc..d2e771856583 100644
--- a/browser/metro/modules/View.jsm
+++ b/browser/metro/modules/View.jsm
@@ -27,18 +27,18 @@ function makeURI(aURL, aOriginCharset, aBaseURI) {
 function View(aSet) {
   this._set = aSet;
   this._set.controller = this;
-  this._window = aSet.ownerDocument.defaultView;
-
-  this.onResize = () => this._adjustDOMforViewState();
-  this._window.addEventListener("resize", this.onResize);
 
+  this.viewStateObserver = {
+    observe: (aSubject, aTopic, aData) => this._adjustDOMforViewState(aData)
+  };
+  Services.obs.addObserver(this.viewStateObserver, "metro_viewstate_changed", false);
   ColorUtils.init();
   this._adjustDOMforViewState();
 }
 
 View.prototype = {
   destruct: function () {
-    this._window.removeEventListener("resize", this.onResize);
+    Services.obs.removeObserver(this.viewStateObserver, "metro_viewstate_changed");
   },
 
   _adjustDOMforViewState: function _adjustDOMforViewState(aState) {