DevTools: Refactor linkifyRawLocation to use fallback url

Source/devtools/front_end/sdk/InspectorBackend.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 565 matching lines @@
      * @param {string} methodName
      * @param {!function(*)} callback
      */
     _dispatchConnectionErrorResponse: function(domain, methodName, callback)
     {
         var error = { message: "Connection is closed", code:  InspectorBackendClass._DevToolsErrorCode, data: null};
         var messageObject = {error: error};
         setTimeout(InspectorBackendClass.AgentPrototype.prototype.dispatchResponse.bind(this.agent(domain), messageObject, methodName, callback), 0);
     },
 
+    /**
+     * @return {boolean}
+     */
+    isClosed: function()
+    {
+        return !this._isConnected;
+    },
+
     __proto__: WebInspector.Object.prototype
 
 }
 
 /**
  * @constructor
  * @extends {InspectorBackendClass.Connection}
  */
 InspectorBackendClass.MainConnection = function()
 {
@@ skipping 318 matching lines @@
 
 }
 
 InspectorBackendClass.Options = {
     dumpInspectorTimeStats: false,
     dumpInspectorProtocolMessages: false,
     suppressRequestErrors: false
 }
 
 InspectorBackend = new InspectorBackendClass();