DevTools: introduce multitarget model listeners

Source/devtools/front_end/profiler/HeapSnapshotView.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 994 matching lines @@
  * @constructor
  * @extends {WebInspector.ProfileType}
  * @implements {WebInspector.TargetManager.Observer}
  * @param {string=} id
  * @param {string=} title
  */
 WebInspector.HeapSnapshotProfileType = function(id, title)
 {
     WebInspector.ProfileType.call(this, id || WebInspector.HeapSnapshotProfileType.TypeId, title || WebInspector.UIString("Take Heap Snapshot"));
     WebInspector.targetManager.observeTargets(this);
+    WebInspector.targetManager.addModelListener(WebInspector.HeapProfilerModel, WebInspector.HeapProfilerModel.Events.ResetProfiles, this._resetProfiles, this);
+    WebInspector.targetManager.addModelListener(WebInspector.HeapProfilerModel, WebInspector.HeapProfilerModel.Events.AddHeapSnapshotChunk, this._addHeapSnapshotChunk, this);
+    WebInspector.targetManager.addModelListener(WebInspector.HeapProfilerModel, WebInspector.HeapProfilerModel.Events.ReportHeapSnapshotProgress, this._reportHeapSnapshotProgress, this);
 }
 
 WebInspector.HeapSnapshotProfileType.TypeId = "HEAP";
 WebInspector.HeapSnapshotProfileType.SnapshotReceived = "SnapshotReceived";
 
 WebInspector.HeapSnapshotProfileType.prototype = {
     /**
      * @param {!WebInspector.Target} target
      */
     targetAdded: function(target)
     {
         target.heapProfilerModel.enable();
-        target.heapProfilerModel.addEventListener(WebInspector.HeapProfilerModel.Events.ResetProfiles, this._resetProfiles, this);
-        target.heapProfilerModel.addEventListener(WebInspector.HeapProfilerModel.Events.AddHeapSnapshotChunk, this._addHeapSnapshotChunk, this);
-        target.heapProfilerModel.addEventListener(WebInspector.HeapProfilerModel.Events.ReportHeapSnapshotProgress, this._reportHeapSnapshotProgress, this);
     },
 
     /**
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target)
     {
-        target.heapProfilerModel.removeEventListener(WebInspector.HeapProfilerModel.Events.ResetProfiles, this._resetProfiles, this);
-        target.heapProfilerModel.removeEventListener(WebInspector.HeapProfilerModel.Events.AddHeapSnapshotChunk, this._addHeapSnapshotChunk, this);
-        target.heapProfilerModel.removeEventListener(WebInspector.HeapProfilerModel.Events.ReportHeapSnapshotProgress, this._reportHeapSnapshotProgress, this);
     },
 
     /**
      * @override
      * @return {string}
      */
     fileExtension: function()
     {
         return ".heapsnapshot";
     },
@@ skipping 1123 matching lines @@
             name.textContent = frame.functionName;
             if (frame.scriptId) {
                 var urlElement = this._linkifier.linkifyLocationByScriptId(this._weakTarget.get(), String(frame.scriptId), frame.scriptName, frame.line - 1, frame.column - 1);
                 frameDiv.appendChild(urlElement);
             }
         }
     },
 
     __proto__: WebInspector.View.prototype
 }