DevTools: [CSS] promisify CSS domain

Source/devtools/front_end/sdk/CPUProfilerModel.js

 /*
  * Copyright (C) 2014 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 105 matching lines @@
         this.dispatchEventToListeners(WebInspector.CPUProfilerModel.EventTypes.ProfileStarted);
         WebInspector.userMetrics.ProfilesCPUProfileTaken.record();
     },
 
     /**
      * @return {!Promise.<?ProfilerAgent.CPUProfile>}
      */
     stopRecording: function()
     {
         /**
-         * @param {?{profile: !ProfilerAgent.CPUProfile}} value
+         * @param {?Protocol.Error} error
+         * @param {?ProfilerAgent.CPUProfile} profile
          * @return {?ProfilerAgent.CPUProfile}
          */
-        function extractProfile(value)
+        function extractProfile(error, profile)
         {
-            return value && value.profile;
+            return !error && profile ? profile : null;
         }
         this._isRecording = false;
         this.dispatchEventToListeners(WebInspector.CPUProfilerModel.EventTypes.ProfileStopped);
-        return this.target().profilerAgent().stop().then(extractProfile);
+        return this.target().profilerAgent().stop(extractProfile);
     },
 
     dispose: function()
     {
         WebInspector.moduleSetting("highResolutionCpuProfiling").removeChangeListener(this._configureCpuProfilerSamplingInterval, this);
     },
 
 
     __proto__: WebInspector.SDKModel.prototype
 }