Bug 1381853 - lazy load viewSourceUtils.js into the browser window, r=mconley.

browser/base/content/browser.js

@@ -110,6 +110,8 @@ XPCOMUtils.defineLazyScriptGetter(this, "FullZoom",
                                   "chrome://browser/content/browser-fullZoom.js");
 XPCOMUtils.defineLazyScriptGetter(this, "PanelUI",
                                   "chrome://browser/content/customizableui/panelUI.js");
+XPCOMUtils.defineLazyScriptGetter(this, "gViewSourceUtils",
+                                  "chrome://global/content/viewSourceUtils.js");
 
 
 // lazy service getters

browser/base/content/global-scripts.inc

@@ -8,7 +8,6 @@
 # tools/lint/eslint/eslint-plugin-mozilla/lib/environments/browser-window.js
 
 <script type="application/javascript" src="chrome://browser/content/browser.js"/>
-<script type="application/javascript" src="chrome://global/content/viewSourceUtils.js"/>
 
 <script type="application/javascript" src="chrome://browser/content/browser-addons.js"/>
 <script type="application/javascript" src="chrome://browser/content/browser-captivePortal.js"/>