DevTools: Get rid of synchronous XHRs in the frontend code

Source/devtools/front_end/bindings/TempFile.js

 /*
  * Copyright (C) 2013 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 346 matching lines @@
             this._tempFile.remove();
     }
 }
 
 /**
  * @constructor
  */
 WebInspector.TempStorageCleaner = function()
 {
     try {
-        this._worker = Runtime.startSharedWorker("temp_storage_shared_worker", "TempStorageCleaner");
+        this._worker = new WorkerRuntime.Worker("temp_storage_shared_worker", "TempStorageCleaner");
         this._worker.onerror = this._handleError.bind(this);
         this._callbacks = [];
         this._worker.port.onmessage = this._handleMessage.bind(this);
         this._worker.port.onerror = this._handleError.bind(this);
     } catch (e) {
         if (e.name === "URLMismatchError")
             console.log("Shared worker wasn't started due to url difference. " + e);
         else
             throw e;
     }
@@ skipping 37 matching lines @@
 
 /**
  * @param {!function()} callback
  */
 WebInspector.TempFile._ensureTempStorageCleared = function(callback)
 {
     if (!WebInspector.TempFile._storageCleaner)
         WebInspector.TempFile._storageCleaner = new WebInspector.TempStorageCleaner();
     WebInspector.TempFile._storageCleaner.ensureStorageCleared(callback);
 }