DevTools: Initial implementation of line-level CPU profile.

third_party/WebKit/Source/devtools/front_end/main/Main.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 96 matching lines @@
         Runtime.experiments.register("appBanner", "App banner support", true);
         Runtime.experiments.register("blackboxJSFramesOnTimeline", "Blackbox JavaScript frames on Timeline", true);
         Runtime.experiments.register("timelineCollapsible", "Collapsbile row groups in Timeline");
         Runtime.experiments.register("colorContrastRatio", "Contrast ratio line in color picker", true);
         Runtime.experiments.register("cpuThrottling", "CPU throttling", true);
         Runtime.experiments.register("emptySourceMapAutoStepping", "Empty sourcemap auto-stepping");
         Runtime.experiments.register("gpuTimeline", "GPU data on timeline", true);
         Runtime.experiments.register("inputEventsOnTimelineOverview", "Input events on Timeline overview", true);
         Runtime.experiments.register("layersPanel", "Layers panel");
         Runtime.experiments.register("layoutEditor", "Layout editor", true);
+        Runtime.experiments.register("lineLevelProfile", "Source line level CPU profiles");

[pfeldman, 2016/03/02 19:48:58]

Lets launch this without experiment.

[alph, 2016/03/03 02:02:52]

Done.

         Runtime.experiments.register("inspectTooltip", "Dark inspect element tooltip");
         Runtime.experiments.register("multipleTimelineViews", "Multiple main views on Timeline", true);
         Runtime.experiments.register("networkRequestHeadersFilterInDetailsView", "Network request headers filter in details view", true);
         Runtime.experiments.register("networkRequestsOnTimeline", "Network requests on Timeline", true);
         Runtime.experiments.register("privateScriptInspection", "Private script inspection");
         Runtime.experiments.register("promiseTracker", "Promise inspector");
         Runtime.experiments.register("requestBlocking", "Request blocking", true);
         Runtime.experiments.register("timelineShowAllEvents", "Show all events on Timeline", true);
         Runtime.experiments.register("timelineLatencyInfo", "Show input latency events on the Timeline", true);
         Runtime.experiments.register("securityPanel", "Security panel");
@@ skipping 1006 matching lines @@
      * @return {?Element}
      */
     settingElement: function()
     {
         return WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show rulers"), WebInspector.moduleSetting("showMetricsRulers"));
     }
 }
 
 
 new WebInspector.Main();