DevTools: get rid of the global capabilities set.

Source/devtools/front_end/profiler/ProfilesPanel.js

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 499 matching lines @@
 WebInspector.ProfileTypeRegistry = function() {
     this._profileTypes = [];
 
     this.cpuProfileType = new WebInspector.CPUProfileType();
     this._addProfileType(this.cpuProfileType);
     this.heapSnapshotProfileType = new WebInspector.HeapSnapshotProfileType();
     this._addProfileType(this.heapSnapshotProfileType);
     this.trackingHeapSnapshotProfileType = new WebInspector.TrackingHeapSnapshotProfileType();
     this._addProfileType(this.trackingHeapSnapshotProfileType);
 
-    if (Capabilities.isMainFrontend && WebInspector.experimentsSettings.canvasInspection.isEnabled()) {
+    if (!WebInspector.isWorkerFrontend() && WebInspector.experimentsSettings.canvasInspection.isEnabled()) {
         this.canvasProfileType = new WebInspector.CanvasProfileType();
         this._addProfileType(this.canvasProfileType);
     }
 }
 
 WebInspector.ProfileTypeRegistry.prototype = {
     /**
      * @param {!WebInspector.ProfileType} profileType
      */
     _addProfileType: function(profileType)
@@ skipping 832 matching lines @@
 importScript("HeapSnapshotCommon.js");
 importScript("HeapSnapshotProxy.js");
 importScript("HeapSnapshotDataGrids.js");
 importScript("HeapSnapshotGridNodes.js");
 importScript("HeapSnapshotView.js");
 importScript("ProfileLauncherView.js");
 importScript("CanvasProfileView.js");
 importScript("CanvasReplayStateView.js");
 
 WebInspector.ProfileTypeRegistry.instance = new WebInspector.ProfileTypeRegistry();