[DevTools] Wait for cachedResourcesLoaded in ConsoleModel

third_party/WebKit/Source/devtools/front_end/console_model/ConsoleModel.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 32 matching lines @@
     this._errors = 0;
 
     SDK.targetManager.observeTargets(this);
   }
 
   /**
    * @override
    * @param {!SDK.Target} target
    */
   targetAdded(target) {
+    var resourceTreeModel = target.model(SDK.ResourceTreeModel);
+    if (!resourceTreeModel || resourceTreeModel.cachedResourcesLoaded()) {
+      this._initTarget(target);
+      return;
+    }
+
+    var eventListener = resourceTreeModel.addEventListener(SDK.ResourceTreeModel.Events.CachedResourcesLoaded, () => {
+      Common.EventTarget.removeEventListeners([eventListener]);
+      this._initTarget(target);
+    });
+  }
+
+  /**
+   * @param {!SDK.Target} target
+   */
+  _initTarget(target) {
     var eventListeners = [];
 
     var logModel = target.model(SDK.LogModel);
     if (logModel)
       eventListeners.push(logModel.on(SDK.LogModel.EntryAddedEvent, this._logEntryAdded, this));
 
     var cpuProfilerModel = target.model(SDK.CPUProfilerModel);
     if (cpuProfilerModel) {
       eventListeners.push(cpuProfilerModel.addEventListener(
           SDK.CPUProfilerModel.Events.ConsoleProfileStarted, this._consoleProfileStarted.bind(this, cpuProfilerModel)));
@@ skipping 28 matching lines @@
 
     target[ConsoleModel.ConsoleModel._events] = eventListeners;
   }
 
   /**
    * @override
    * @param {!SDK.Target} target
    */
   targetRemoved(target) {
     this._messageByExceptionId.delete(target);
-    Common.EventTarget.removeEventListeners(target[ConsoleModel.ConsoleModel._events]);
+    Common.EventTarget.removeEventListeners(target[ConsoleModel.ConsoleModel._events] || []);
   }
 
   /**
    * @param {!SDK.ExecutionContext} executionContext
    * @param {string} text
    * @param {boolean} useCommandLineAPI
    */
   evaluateCommandInConsole(executionContext, text, useCommandLineAPI) {
     var target = executionContext.target();
     var requestedText = text;
@@ skipping 552 matching lines @@
     return 2;
   return 3;
 };
 
 ConsoleModel.ConsoleModel._events = Symbol('ConsoleModel.ConsoleModel.events');
 
 /**
  * @type {!ConsoleModel.ConsoleModel}
  */
 ConsoleModel.consoleModel;