DevTools: Use live location for line level profile presentation.

third_party/WebKit/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 1250 matching lines @@
             rightTime = Math.min(rightTime + 0.05 * span, this._tracingModel.maximumRecordTime());
         }
         this.requestWindowTimes(leftTime, rightTime);
     },
 
     /**
      * @param {!WebInspector.TimelineModel.LineLevelProfile} profile
      */
     _setLineLevelCPUProfile: function(profile)
     {
+        var debuggerModel = WebInspector.DebuggerModel.fromTarget(WebInspector.targetManager.mainTarget());
+        if (!debuggerModel)
+            return;
         for (var fileInfo of profile.files()) {
-            var uiSourceCode = WebInspector.workspace.uiSourceCodeForURL(/** @type {string} */ (fileInfo[0]));
-            if (!uiSourceCode)
-                continue;
+            var url = /** @type {string} */ (fileInfo[0]);
+            var uiSourceCode = WebInspector.workspace.uiSourceCodeForURL(url);
             for (var lineInfo of fileInfo[1]) {
                 var line = lineInfo[0];
                 var time = lineInfo[1];
-                uiSourceCode.addLineDecoration(line, WebInspector.TimelineUIUtils.PerformanceLineDecorator.type, time);
+                var rawLocation = debuggerModel.createRawLocationByURL(url, line - 1, 0);
+                if (rawLocation)
+                    WebInspector.debuggerWorkspaceBinding.createLiveLocation(rawLocation, updateLocation.bind(null, time));
+                else if (uiSourceCode)
+                    uiSourceCode.addLineDecoration(line, WebInspector.TimelineUIUtils.PerformanceLineDecorator.type, time);
             }
         }
+
+        /**
+         * @param {number} time
+         * @param {!WebInspector.LiveLocation} liveLocation
+         */
+        function updateLocation(time, liveLocation)
+        {
+            var uiLocation = liveLocation.uiLocation();

[pfeldman, 2016/03/17 01:20:58]

remove them from the old one?

[alph, 2016/03/22 21:41:54]

Done.

+            if (uiLocation)
+                uiLocation.uiSourceCode.addLineDecoration(uiLocation.lineNumber, WebInspector.TimelineUIUtils.PerformanceLineDecorator.type, time);
+        }
     },
 
     _resetLineLevelCPUProfile: function()
     {
         WebInspector.workspace.uiSourceCodes().forEach(uiSourceCode => uiSourceCode.removeAllLineDecorations(WebInspector.TimelineUIUtils.PerformanceLineDecorator.type));
     },
 
     __proto__: WebInspector.Panel.prototype
 }
 
@@ skipping 892 matching lines @@
      * @override
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target)
     {
         this._targets.remove(target, true);
     },
 
     __proto__: WebInspector.Object.prototype
 }