DevTooos: Profiler domain refactoring: Make deoptReason and positionTicks fields optional.

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 684 matching lines @@
     var relatedNodeLabel;
 
     var contentHelper = new WebInspector.TimelineDetailsContentHelper(model.targetByEvent(event), linkifier);
     contentHelper.addSection(WebInspector.TimelineUIUtils.eventTitle(event), WebInspector.TimelineUIUtils.eventStyle(event).category);
 
     var eventData = event.args["data"];
     var initiator = event.initiator;
 
     if (event.warning)
         contentHelper.appendWarningRow(event);
-    if (event.name === recordTypes.JSFrame) {
-        var deoptReason = eventData["deoptReason"];
-        if (deoptReason && deoptReason !== "no reason")
-            contentHelper.appendWarningRow(event, WebInspector.TimelineModel.WarningType.V8Deopt);
-    }
+    if (event.name === recordTypes.JSFrame && eventData["deoptReason"])
+        contentHelper.appendWarningRow(event, WebInspector.TimelineModel.WarningType.V8Deopt);
 
     if (detailed) {
         contentHelper.appendTextRow(WebInspector.UIString("Self Time"), Number.millisToString(event.selfTime, true));
         contentHelper.appendTextRow(WebInspector.UIString("Total Time"), Number.millisToString(event.duration || 0, true));
     }
 
     switch (event.name) {
     case recordTypes.GCEvent:
     case recordTypes.MajorGC:
     case recordTypes.MinorGC:
@@ skipping 1427 matching lines @@
     case warnings.V8Deopt:
         span.appendChild(WebInspector.linkifyURLAsNode("https://github.com/GoogleChrome/devtools-docs/issues/53",
             WebInspector.UIString("Not optimized"), undefined, true));
         span.createTextChild(WebInspector.UIString(": %s", eventData["deoptReason"]));
         break;
     default:
         console.assert(false, "Unhandled TimelineModel.WarningType");
     }
     return span;
 }