DevTools: Support multiple target in TimelineModelImpl

Source/devtools/front_end/timeline/TimelineModel.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 139 matching lines @@
      */
     startRecording: function(captureStacks, captureMemory, capturePictures)
     {
     },
 
     stopRecording: function()
     {
     },
 
     /**
-     * @return {boolean}
-     */
-    loadedFromFile: function()
-    {
-        return false;
-    },
-
-    /**
      * @param {?function(!WebInspector.TimelineModel.Record)|?function(!WebInspector.TimelineModel.Record,number)} preOrderCallback
      * @param {function(!WebInspector.TimelineModel.Record)|function(!WebInspector.TimelineModel.Record,number)=} postOrderCallback
      */
     forAllRecords: function(preOrderCallback, postOrderCallback)
     {
         WebInspector.TimelineModel.forAllRecords(this._records, preOrderCallback, postOrderCallback);
     },
 
     /**
      * @param {!WebInspector.TimelineModel.Filter} filter
@@ skipping 78 matching lines @@
         throw new Error("Not implemented");
     },
 
     saveToFile: function()
     {
         throw new Error("Not implemented");
     },
 
     reset: function()
     {
-        this._loadedFromFile = false;
         this._records = [];
         this._minimumRecordTime = 0;
         this._maximumRecordTime = 0;
         /** @type {!Array.<!WebInspector.TimelineModel.Record>} */
         this._mainThreadTasks =  [];
         /** @type {!Array.<!WebInspector.TimelineModel.Record>} */
         this._gpuThreadTasks = [];
         /** @type {!Array.<!WebInspector.TimelineModel.Record>} */
         this._eventDividerRecords = [];
         this.dispatchEventToListeners(WebInspector.TimelineModel.Events.RecordsCleared);
@@ skipping 286 matching lines @@
         function recordTimestampComparator(a, b)
         {
             // Never return 0, as the merge function will squash identical entries.
             return a.startTime() < b.startTime() ? -1 : 1;
         }
         var result = this._backgroundRecordsBuffer.mergeOrdered(records, recordTimestampComparator);
         this._backgroundRecordsBuffer = [];
         return result;
     }
 }