Unify logic of stack trace generation for extension errors

extensions/renderer/resources/extension_custom_bindings.js

 // Copyright 2014 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.
 
 // Custom binding for the extension API.
 
 var binding = require('binding').Binding.create('extension');
 
 var messaging = require('messaging');
 var runtimeNatives = requireNative('runtime');
@@ skipping 74 matching lines @@
     }
   });
 
   apiFunctions.setUpdateArgumentsPreValidate('sendRequest',
       $Function.bind(messaging.sendMessageUpdateArguments,
                      null, 'sendRequest', false /* hasOptionsArgument */));
 
   apiFunctions.setHandleRequest('sendRequest',
                                 function(targetId, request, responseCallback) {
     if (sendRequestIsDisabled)
-      throw new Error(sendRequestIsDisabled);
+      throw new $Error.self(sendRequestIsDisabled);
     var port = chrome.runtime.connect(targetId || extensionId,
                                       {name: messaging.kRequestChannel});
     messaging.sendMessageImpl(port, request, responseCallback);
   });
 
   if (sendRequestIsDisabled) {
     extension.onRequest.addListener = function() {
-      throw new Error(sendRequestIsDisabled);
+      throw new $Error.self(sendRequestIsDisabled);
     };
     if (contextType == 'BLESSED_EXTENSION') {
       extension.onRequestExternal.addListener = function() {
-        throw new Error(sendRequestIsDisabled);
+        throw new $Error.self(sendRequestIsDisabled);

[not at google - send to devlin, 2014/08/19 16:45:55]

All of these: new Error()

       };
     }
   }
 });
 
 exports.binding = binding.generate();