[DevTools] Explicitly require ResourceTreeModel

third_party/WebKit/Source/devtools/front_end/sdk/ResourceTreeModel.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 63 matching lines @@
     PageReloadRequested: "PageReloadRequested",
     WillReloadPage: "WillReloadPage",
     InspectedURLChanged: "InspectedURLChanged",
     SecurityOriginAdded: "SecurityOriginAdded",
     SecurityOriginRemoved: "SecurityOriginRemoved",
     ScreencastFrame: "ScreencastFrame",
     ScreencastVisibilityChanged: "ScreencastVisibilityChanged",
     ColorPicked: "ColorPicked"
 }
 
+/**
+ * @param {!WebInspector.Target} target
+ * @return {?WebInspector.ResourceTreeModel}
+ */
+WebInspector.ResourceTreeModel.fromTarget = function(target)
+{
+    return /** @type {?WebInspector.ResourceTreeModel} */ (target.model(WebInspector.ResourceTreeModel));
+}
 
 /**
  * @return {!Array.<!WebInspector.ResourceTreeFrame>}
  */
 WebInspector.ResourceTreeModel.frames = function()
 {
     var result = [];
     for (var target of WebInspector.targetManager.targets())
         result = result.concat(target.resourceTreeModel._frames.valuesArray());
     return result;
@@ skipping 891 matching lines @@
 
     /**
      * @override
      */
     navigationRequested: function()
     {
        // Frontend is not interested in interstitials.
     }
 
 }