[DevTools] Explicitly require ResourceTreeModel

third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.PanelWithSidebar}
  * @implements {WebInspector.TargetManager.Observer}
  */
 WebInspector.SecurityPanel = function()
@@ skipping 230 matching lines @@
      * @override
      * @param {!WebInspector.Target} target
      */
     targetAdded: function(target)
     {
         if (this._target)
             return;
 
         this._target = target;
 
-        if (target.hasBrowserCapability()) {
-            target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.MainFrameNavigated, this._onMainFrameNavigated, this);
-            target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.InterstitialShown, this._onInterstitialShown, this);
-            target.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.InterstitialHidden, this._onInterstitialHidden, this);
+        var resourceTreeModel = WebInspector.ResourceTreeModel.fromTarget(this._target);
+        if (resourceTreeModel) {
+            resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.MainFrameNavigated, this._onMainFrameNavigated, this);
+            resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.InterstitialShown, this._onInterstitialShown, this);
+            resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.InterstitialHidden, this._onInterstitialHidden, this);
         }
 
         var networkManager = WebInspector.NetworkManager.fromTarget(target);
         networkManager.addEventListener(WebInspector.NetworkManager.EventTypes.ResponseReceived, this._onResponseReceived, this);
         networkManager.addEventListener(WebInspector.NetworkManager.EventTypes.RequestFinished, this._onRequestFinished, this);
 
         var securityModel = WebInspector.SecurityModel.fromTarget(target);
         securityModel.addEventListener(WebInspector.SecurityModel.EventTypes.SecurityStateChanged, this._onSecurityStateChanged, this);
     },
 
@@ skipping 718 matching lines @@
         row.createChild("div").textContent = key;
 
         var valueDiv = row.createChild("div");
         if (typeof value === "string") {
             valueDiv.textContent = value;
         } else {
             valueDiv.appendChild(value);
         }
     }
 }