Devtools UI: Enable tooltips by default

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 130 matching lines @@
         Runtime.experiments.register("privateScriptInspection", "Private script inspection");
         Runtime.experiments.register("promiseTracker", "Promise inspector");
         Runtime.experiments.register("securityPanel", "Security panel", true);
         Runtime.experiments.register("serviceWorkersInPageFrontend", "Service workers in DevTools for page");
         Runtime.experiments.register("serviceWorkersInResources", "Service workers in Resources panel", true);
         Runtime.experiments.register("showPrimaryLoadWaterfallInNetworkTimeline", "Show primary load waterfall in Network timeline", true);
         Runtime.experiments.register("stepIntoAsync", "Step into async");
         Runtime.experiments.register("timelineInvalidationTracking", "Timeline invalidation tracking", true);
         Runtime.experiments.register("timelineTracingJSProfile", "Timeline tracing based JS profiler", true);
         Runtime.experiments.register("timelineFlowEvents", "Timeline flow events", true);
-        Runtime.experiments.register("tooltips", "Tooltips", true);
+        Runtime.experiments.register("tooltips", "Tooltips");
         Runtime.experiments.register("inlineVariableValues", "Display variable values inline while debugging");
 
         Runtime.experiments.cleanUpStaleExperiments();
 
         if (InspectorFrontendHost.isUnderTest()) {
             var testPath = JSON.parse(prefs["testPath"] || "\"\"");
             // Enable experiments for testing.
             if (testPath.indexOf("debugger/promise") !== -1)
                 Runtime.experiments.enableForTest("promiseTracker");
             if (testPath.indexOf("elements/") !== -1)
                 Runtime.experiments.enableForTest("animationInspection");
             if (testPath.indexOf("layers/") !== -1)
                 Runtime.experiments.enableForTest("layersPanel");
             if (testPath.indexOf("service-workers/") !== -1)
                 Runtime.experiments.enableForTest("serviceWorkersInResources");
             if (testPath.indexOf("timeline/") !== -1 || testPath.indexOf("layers/") !== -1)
                 Runtime.experiments.enableForTest("layersPanel");
         }
 
         Runtime.experiments.setDefaultExperiments([
             "inlineVariableValues",
-            "serviceWorkersInPageFrontend"
+            "serviceWorkersInPageFrontend",
+            "tooltips"
         ]);
     },
 
     /**
      * @suppressGlobalPropertiesCheck
      */
     _createAppUI: function()
     {
         console.timeStamp("Main._createApp");
 
@@ skipping 757 matching lines @@
     p.classList.add("help-section");
     p.textContent = WebInspector.UIString("Inspected worker has terminated. Once it restarts we will attach to it automatically.");
 }
 
 WebInspector.WorkerTerminatedScreen.prototype = {
 
     __proto__: WebInspector.HelpScreen.prototype
 }
 
 new WebInspector.Main();