DevTools: properly handle target suspension/resuming in NetworkProject

third_party/WebKit/Source/devtools/front_end/bindings/NetworkProject.js

 /*
  * Copyright (C) 2012 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 70 matching lines @@
       this._eventListeners.push(
           resourceTreeModel.addEventListener(SDK.ResourceTreeModel.Events.ResourceAdded, this._resourceAdded, this),
           resourceTreeModel.addEventListener(
               SDK.ResourceTreeModel.Events.FrameWillNavigate, this._frameWillNavigate, this),
           resourceTreeModel.addEventListener(
               SDK.ResourceTreeModel.Events.MainFrameNavigated, this._mainFrameNavigated, this),
           resourceTreeModel.addEventListener(SDK.ResourceTreeModel.Events.FrameDetached, this._frameDetached, this));
     }
 
     this._debuggerModel = target.model(SDK.DebuggerModel);
+    /** @type {!Set<!SDK.Script>} */
+    this._acceptedScripts = new Set();
     if (this._debuggerModel) {
       var runtimeModel = this._debuggerModel.runtimeModel();
       this._eventListeners.push(
           runtimeModel.addEventListener(
               SDK.RuntimeModel.Events.ExecutionContextDestroyed, this._executionContextDestroyed, this),
           this._debuggerModel.addEventListener(
+              SDK.DebuggerModel.Events.GlobalObjectCleared, this._globalObjectCleared, this),
+          this._debuggerModel.addEventListener(
               SDK.DebuggerModel.Events.ParsedScriptSource, this._parsedScriptSource, this),
           this._debuggerModel.addEventListener(
               SDK.DebuggerModel.Events.FailedToParseScriptSource, this._parsedScriptSource, this));
     }
     var cssModel = target.model(SDK.CSSModel);
     if (cssModel) {
       this._eventListeners.push(
           cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetAdded, this._styleSheetAdded, this),
           cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetRemoved, this._styleSheetRemoved, this));
     }
@@ skipping 167 matching lines @@
     return true;
   }
 
   /**
    * @param {!Common.Event} event
    */
   _parsedScriptSource(event) {
     var script = /** @type {!SDK.Script} */ (event.data);
     if (!this._acceptsScript(script))
       return;
+    this._acceptedScripts.add(script);
     var originalContentProvider = script.originalContentProvider();
     var frameId = Bindings.frameIdForScript(script);
     script[Bindings.NetworkProject._frameIdSymbol] = frameId;
     var uiSourceCode = this._createFile(originalContentProvider, frameId, script.isContentScript());
     uiSourceCode[Bindings.NetworkProject._scriptSymbol] = script;
     var metadata = this._fetchMetadata(frameId, uiSourceCode.url());
     this._addUISourceCodeWithProvider(uiSourceCode, originalContentProvider, metadata);
   }
 
   /**
    * @param {!Common.Event} event
    */
   _executionContextDestroyed(event) {
     var executionContext = /** @type {!SDK.ExecutionContext} */ (event.data);
     var scripts = this._debuggerModel.scriptsForExecutionContext(executionContext);
+    this._removeScripts(scripts);
+  }
+
+  /**
+   * @param {!Array<!SDK.Script>} scripts
+   */
+  _removeScripts(scripts) {
     for (var script of scripts) {
-      if (!this._acceptsScript(script))
+      if (!this._acceptedScripts.has(script))
         continue;
+      this._acceptedScripts.delete(script);
       var frameId = script[Bindings.NetworkProject._frameIdSymbol];
       this._removeFileForURL(script.contentURL(), frameId, script.isContentScript());
     }
   }
 
   /**
+   * @param {!Common.Event} event
+   */
+  _globalObjectCleared(event) {
+    this._removeScripts(Array.from(this._acceptedScripts));
+  }
+
+  /**
    * @param {!SDK.CSSStyleSheetHeader} header
    */
   _acceptsHeader(header) {
     if (header.isInline && !header.hasSourceURL && header.origin !== 'inspector')
       return false;
     if (!header.resourceURL())
       return false;
     return true;
   }
 
@@ skipping 177 matching lines @@
 };
 
 Bindings.NetworkProject._networkProjectSymbol = Symbol('networkProject');
 Bindings.NetworkProject._resourceSymbol = Symbol('resource');
 Bindings.NetworkProject._scriptSymbol = Symbol('script');
 Bindings.NetworkProject._styleSheetSymbol = Symbol('styleSheet');
 Bindings.NetworkProject._targetSymbol = Symbol('target');
 Bindings.NetworkProject._frameIdSymbol = Symbol('frameid');
 
 Bindings.NetworkProject._frameAttributionSymbol = Symbol('Bindings.NetworkProject._frameAttributionSymbol');