Make profiling lock global rather than per Target

Source/devtools/front_end/audits/AuditLauncherView.js

 /*
  * Copyright (C) 2011 Google 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
     this._sortedCategories = [];
 
     this._headerElement = document.createElement("h1");
     this._headerElement.className = "no-audits";
     this._headerElement.textContent = WebInspector.UIString("No audits to run");
     this._contentElement.appendChild(this._headerElement);
 
     var target = this._auditController.target();
     target.networkManager.addEventListener(WebInspector.NetworkManager.EventTypes.RequestStarted, this._onRequestStarted, this);
     target.networkManager.addEventListener(WebInspector.NetworkManager.EventTypes.RequestFinished, this._onRequestFinished, this);
-    target.profilingLock.addEventListener(WebInspector.Lock.Events.StateChanged, this._updateButton, this);
+    WebInspector.profilingLock.addEventListener(WebInspector.Lock.Events.StateChanged, this._updateButton, this);
 
     var defaultSelectedAuditCategory = {};
     defaultSelectedAuditCategory[WebInspector.AuditLauncherView.AllCategoriesKey] = true;
     this._selectedCategoriesSetting = WebInspector.settings.createSetting("selectedAuditCategories", defaultSelectedAuditCategory);
 }
 
 WebInspector.AuditLauncherView.AllCategoriesKey = "__AllCategories";
 
 WebInspector.AuditLauncherView.prototype = {
     _resetResourceCount: function()
@@ skipping 60 matching lines @@
      */
     _setAuditRunning: function(auditRunning)
     {
         if (this._auditRunning === auditRunning)
             return;
         this._auditRunning = auditRunning;
         this._updateButton();
         this._toggleUIComponents(this._auditRunning);
         var target = this._auditController.target();
         if (this._auditRunning) {
-            target.profilingLock.acquire();
+            WebInspector.profilingLock.acquire();
             this._startAudit();
         } else {
             this._stopAudit();
-            target.profilingLock.release();
+            WebInspector.profilingLock.release();
         }
     },
 
     _startAudit: function()
     {
         var catIds = [];
         for (var category = 0; category < this._sortedCategories.length; ++category) {
             if (this._sortedCategories[category]._checkboxElement.checked)
                 catIds.push(this._sortedCategories[category].id);
         }
@@ skipping 158 matching lines @@
         for (var i = 0, length = childNodes.length; i < length; ++i)
             selectedCategories[childNodes[i].__displayName] = childNodes[i].firstChild.checked;
         selectedCategories[WebInspector.AuditLauncherView.AllCategoriesKey] = this._selectAllCheckboxElement.checked;
         this._selectedCategoriesSetting.set(selectedCategories);
         this._updateButton();
     },
 
     _updateButton: function()
     {
         var target = this._auditController.target();
-        var enable = this._auditRunning || (this._currentCategoriesCount && !target.profilingLock.isAcquired());
+        var enable = this._auditRunning || (this._currentCategoriesCount && !WebInspector.profilingLock.isAcquired());
         this._launchButton.textContent = this._auditRunning ? WebInspector.UIString("Stop") : WebInspector.UIString("Run");
         this._launchButton.disabled = !enable;
         this._launchButton.title = enable ? "" : WebInspector.anotherProfilerActiveLabel();
     },
 
     __proto__: WebInspector.VBox.prototype
 }