DevTools: enable by default disableAgentsWhenProfile experiment

Source/devtools/front_end/sdk/TimelineManager.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 49 matching lines @@
     /**
      * @param {number=} maxCallStackDepth
      * @param {string=} liveEvents
      * @param {boolean=} includeCounters
      * @param {boolean=} includeGPUEvents
      * @param {function(?Protocol.Error)=} callback
      */
     start: function(maxCallStackDepth, liveEvents, includeCounters, includeGPUEvents, callback)
     {
         this._enablementCount++;
-        WebInspector.profilingLock().acquire();
+        WebInspector.targetManager.suspendAllTargets();
         if (this._enablementCount === 1)
             this.target().timelineAgent().start(maxCallStackDepth, true, liveEvents, includeCounters, includeGPUEvents, callback);
         else if (callback)
             callback(null);
     },
 
     /**
      * @param {function(?Protocol.Error)} callback
      */
     stop: function(callback)
     {
         this._enablementCount--;
         if (this._enablementCount < 0) {
             console.error("WebInspector.TimelineManager start/stop calls are unbalanced " + new Error().stack);
             return;
         }
 
         if (!this._enablementCount)
             this.target().timelineAgent().stop(allDoneCallback);
 
         /**
          * @param {?Protocol.Error} error
          */
         function allDoneCallback(error)
         {
-            WebInspector.profilingLock().release();
+            WebInspector.targetManager.resumeAllTargets();
             callback(error);
         }
     },
 
     /**
      * @param {boolean=} consoleTimeline
      * @param {!Array.<!TimelineAgent.TimelineEvent>=} events
      */
     _stopped: function(consoleTimeline, events)
     {
@@ skipping 54 matching lines @@
     },
 
     /**
      * @param {number} count
      */
     progress: function(count)
     {
         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineProgress, count);
     }
 }