DevTools: Show the full chain of initiators on the flame chart.

third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js

 /*
  * Copyright (C) 2013 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 904 matching lines @@
       contentHelper.appendElementRow(
           relatedNodeLabel || Common.UIString('Related Node'),
           Components.DOMPresentationUtils.linkifyNodeReference(relatedNode));
     }
 
     if (event[Timeline.TimelineUIUtils._previewElementSymbol]) {
       contentHelper.addSection(Common.UIString('Preview'));
       contentHelper.appendElementRow('', event[Timeline.TimelineUIUtils._previewElementSymbol]);
     }
 
-    if (timelineData.stackTraceForSelfOrInitiator() || TimelineModel.InvalidationTracker.invalidationEventsFor(event))
+    if (initiator || timelineData.stackTraceForSelfOrInitiator() ||
+        TimelineModel.InvalidationTracker.invalidationEventsFor(event))
       Timeline.TimelineUIUtils._generateCauses(event, model.targetByEvent(event), relatedNodesMap, contentHelper);
 
     var stats = {};
     var showPieChart = detailed && Timeline.TimelineUIUtils._aggregatedStatsForTraceEvent(stats, model, event);
     if (showPieChart) {
       contentHelper.addSection(Common.UIString('Aggregated Time'));
       var pieChart = Timeline.TimelineUIUtils.generatePieChart(
           stats, Timeline.TimelineUIUtils.eventStyle(event).category, event.selfTime);
       contentHelper.appendElementRow('', pieChart);
     }
@@ skipping 1350 matching lines @@
    * @param {string=} warningType
    */
   appendWarningRow(event, warningType) {
     var warning = Timeline.TimelineUIUtils.eventWarning(event, warningType);
     if (warning)
       this.appendElementRow(Common.UIString('Warning'), warning, true);
   }
 };
 
 Timeline.TimelineUIUtils._categoryBreakdownCacheSymbol = Symbol('categoryBreakdownCache');