Use isProgram method to detect Program events

Source/devtools/front_end/timeline/TimelineModelImpl.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.TimelineModel}
  * @param {!WebInspector.TimelineManager} timelineManager
  */
 WebInspector.TimelineModelImpl = function(timelineManager)
@@ skipping 470 matching lines @@
 
     /**
      * @return {?Object}
      */
     counters: function()
     {
         return this.type() === WebInspector.TimelineModel.RecordType.UpdateCounters ? this.data() : null;
     },
 
     /**
+     * @return {boolean}
+     */
+    isProgram: function()
+    {
+        return this.type() === WebInspector.TimelineModel.RecordType.Program;
+    },
+
+    /**
      * @return {?Object}
      */
     highlightQuad: function()
     {
         var quad = null;
         var recordTypes = WebInspector.TimelineModel.RecordType;
         switch(this.type()) {
         case recordTypes.Layout:
             quad = this.data().root;
             break;
@@ skipping 277 matching lines @@
                 break;
             length += itemLength;
             data.push(item);
             ++this._recordIndex;
         }
         if (this._recordIndex === this._payloads.length)
             data.push(data.pop() + "]");
         stream.write(data.join(separator), this._writeNextChunk.bind(this));
     }
 }