[ Do not submit ] Prototype for invalidation analysis

Source/devtools/front_end/timeline/TracingTimelineUIUtils.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.TimelineUIUtils}
  */
 WebInspector.TracingTimelineUIUtils = function()
 {
@@ skipping 611 matching lines @@
     case recordTypes.RecalculateStyles: // We don't want to see default details.
         contentHelper.appendTextRow(WebInspector.UIString("Elements affected"), event.args["elementCount"]);
         callStackLabel = WebInspector.UIString("Styles recalculation forced");
         break;
     case recordTypes.Layout:
         var beginData = event.args["beginData"];
         contentHelper.appendTextRow(WebInspector.UIString("Nodes that need layout"), beginData["dirtyObjects"]);
         contentHelper.appendTextRow(WebInspector.UIString("Layout tree size"), beginData["totalObjects"]);
         contentHelper.appendTextRow(WebInspector.UIString("Layout scope"),
                                     beginData["partialLayout"] ? WebInspector.UIString("Partial") : WebInspector.UIString("Whole document"));
+        contentHelper.appendTextRow(WebInspector.UIString("Invalidation reasons"),
+                                    event.invalidations ? WebInspector.UIString(event.invalidations) : WebInspector.UIString("Unknown"));
         callSiteStackTraceLabel = WebInspector.UIString("Layout invalidated");
         callStackLabel = WebInspector.UIString("Layout forced");
         relatedNodeLabel = WebInspector.UIString("Layout root");
         break;
     case recordTypes.ConsoleTime:
         contentHelper.appendTextRow(WebInspector.UIString("Message"), eventData["message"]);
         break;
     case recordTypes.WebSocketCreate:
     case recordTypes.WebSocketSendHandshakeRequest:
     case recordTypes.WebSocketReceiveHandshakeResponse:
@@ skipping 162 matching lines @@
     return result;
 }
 
 /**
  * @return {!WebInspector.TracingTimelineModel.Filter}
  */
 WebInspector.TracingTimelineUIUtils.hiddenEventsFilter = function()
 {
     return new WebInspector.TracingTimelineModel.InclusiveEventNameFilter(WebInspector.TracingTimelineUIUtils._visibleTypes());
 }