DevTools: Implement console message logging through an extension

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 133 matching lines @@
             for (var i = 0; i < events.length; ++i)
                 this._dispatcher.eventRecorded(events[i]);
         }
         if (callback)
             callback(error);
     },
 
     _configureCpuProfilerSamplingInterval: function()
     {
         var intervalUs = WebInspector.settings.highResolutionCpuProfiling.get() ? 100 : 1000;
-        ProfilerAgent.setSamplingInterval(intervalUs, didChangeInterval);
+        ProfilerAgent.setSamplingInterval(intervalUs, didChangeInterval.bind(this));
+
+        /**
+         * @this {WebInspector.TimelineManager}
+         */
         function didChangeInterval(error)
         {
             if (error)
-                WebInspector.console.showErrorMessage(error);
+                this.target().consoleModel.showErrorMessage(error);
         }
     },
 
     __proto__: WebInspector.TargetAwareObject.prototype
 }
 
 /**
  * @constructor
  * @implements {TimelineAgent.Dispatcher}
  */
@@ skipping 48 matching lines @@
     progress: function(count)
     {
         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineProgress, count);
     }
 }
 
 /**
  * @type {!WebInspector.TimelineManager}
  */
 WebInspector.timelineManager;