Unify logic of stack trace generation for extension errors

extensions/renderer/resources/utils.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.
 
 var createClassWrapper = requireNative('utils').createClassWrapper;
 var nativeDeepCopy = requireNative('utils').deepCopy;
 var schemaRegistry = requireNative('schema_registry');
 var CHECK = requireNative('logging').CHECK;
 var WARNING = requireNative('logging').WARNING;
 
@@ skipping 20 matching lines @@
  * @param {?} value
  */
 function lookup(array_of_dictionaries, field, value) {
   var filter = function (dict) {return dict[field] == value;};
   var matches = array_of_dictionaries.filter(filter);
   if (matches.length == 0) {
     return undefined;
   } else if (matches.length == 1) {
     return matches[0]
   } else {
-    throw new Error("Failed lookup of field '" + field + "' with value '" +
-                    value + "'");
+    throw new $Error.self(

[not at google - send to devlin, 2014/08/19 16:45:56]

I have no idea about this one.

+        "Failed lookup of field '" + field + "' with value '" + value + "'");
   }
 }
 
 function loadTypeSchema(typeName, defaultSchema) {
   var parts = $String.split(typeName, '.');
   if (parts.length == 1) {
     if (defaultSchema == null) {
       WARNING('Trying to reference "' + typeName + '" ' +
               'with neither namespace nor default schema.');
       return null;
@@ skipping 78 matching lines @@
  */
 function deepCopy(value) {
   return nativeDeepCopy(value);
 }
 
 exports.forEach = forEach;
 exports.loadTypeSchema = loadTypeSchema;
 exports.lookup = lookup;
 exports.expose = expose;
 exports.deepCopy = deepCopy;