DevTools: Remove redundant dependency on target from TimelineFrameModel

Source/devtools/front_end/timeline/TimelinePanel.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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.
@@ skipping 244 matching lines @@
     },
 
     /**
      * @return {!WebInspector.TimelineFrameModelBase}
      */
     _frameModel: function()
     {
         if (this._lazyFrameModel)
             return this._lazyFrameModel;
         if (this._tracingModel) {
-            var tracingFrameModel = new WebInspector.TracingTimelineFrameModel(this._model.target());
+            var tracingFrameModel = new WebInspector.TracingTimelineFrameModel();
             tracingFrameModel.addTraceEvents(this._tracingTimelineModel.inspectedTargetEvents(), this._tracingModel.sessionId() || "");
             this._lazyFrameModel = tracingFrameModel;
         } else {
-            var frameModel = new WebInspector.TimelineFrameModel(this._model.target());
+            var frameModel = new WebInspector.TimelineFrameModel();
             frameModel.setMergeRecords(!WebInspector.experimentsSettings.timelineNoLiveUpdate.isEnabled() || !this._recordingInProgress);
             frameModel.addRecords(this._model.records());
             this._lazyFrameModel = frameModel;
         }
         return this._lazyFrameModel;
     },
 
     /**
      * @return {!WebInspector.TimelineView}
      */
@@ skipping 1197 matching lines @@
      * @param {!WebInspector.TimelineModel.Record} record
      * @return {boolean}
      */
     accept: function(record)
     {
         return !this._regex || this._uiUtils.testContentMatching(record, this._regex);
     },
 
     __proto__: WebInspector.TimelineModel.Filter.prototype
 }