[DevTools] Refactor connection-related classes.

third_party/WebKit/Source/devtools/front_end/audits2/Audits2Panel.js

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.Panel}
  */
 WebInspector.Audits2Panel = function()
 {
@@ skipping 16 matching lines @@
      * @param {string} message
      */
     _dispatchProtocolMessage: function(message)
     {
         this._send("dispatchProtocolMessage", {message: message});
     },
 
     _stop: function()
     {
         this._send("stop").then(() => {
-            this._rawConnection.yieldConnection();
+            this._rawConnection.disconnect();
             this._backend.dispose();
             delete this._backend;
             delete this._backendPromise;
         });
     },
 
     /**
      * @param {string} method
      * @param {!Object=} params
      * @return {!Promise<!Object|undefined>}
      */
     _send: function(method, params)
     {
         if (!this._backendPromise) {
             this._backendPromise = WebInspector.serviceManager.createAppService("audits2_worker", "Audits2Service", false).then(backend => {
                 this._backend = backend;
-                this._backend.on("sendProtocolMessage", result => this._rawConnection.send(result.message));
+                this._backend.on("sendProtocolMessage", result => this._rawConnection.sendMessage(result.message));
             });
         }
         return this._backendPromise.then(() => this._backend ? this._backend.send(method, params) : undefined);
     },
 
     __proto__: WebInspector.Panel.prototype
 };