DevTools: introduce API for the Common.FormatterWorkerPool.

third_party/WebKit/Source/devtools/front_end/network/JSONView.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 58 matching lines @@
   /**
    * @param {?string} text
    * @return {!Promise<?Network.ParsedJSON>}
    */
   static parseJSON(text) {
     var returnObj = null;
     if (text)
       returnObj = Network.JSONView._extractJSON(/** @type {string} */ (text));
     if (!returnObj)
       return Promise.resolve(/** @type {?Network.ParsedJSON} */ (null));
-    return Common.formatterWorkerPool.runTask('relaxedJSONParser', {content: returnObj.data}).then(handleReturnedJSON);
+    return Common.formatterWorkerPool.relaxedJSONParser(returnObj.data).then(handleReturnedJSON);
 
     /**
-     * @param {?MessageEvent} event
+     * @param {?Object} data
      * @return {?Network.ParsedJSON}
      */
-    function handleReturnedJSON(event) {
-      if (!event || !event.data)
+    function handleReturnedJSON(data) {
+      if (!data)
         return null;
-      returnObj.data = event.data;
+      returnObj.data = data;
       return returnObj;
     }
   }
 
   /**
    * @param {string} text
    * @return {?Network.ParsedJSON}
    */
   static _extractJSON(text) {
     // Do not treat HTML as JSON.
@@ skipping 191 matching lines @@
    * @param {*} data
    * @param {string} prefix
    * @param {string} suffix
    */
   constructor(data, prefix, suffix) {
     this.data = data;
     this.prefix = prefix;
     this.suffix = suffix;
   }
 };