[Extensions] Update last_error.js, send_request.js

extensions/renderer/resources/last_error.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 GetAvailability = requireNative('v8_context').GetAvailability;
 var GetGlobal = requireNative('sendRequest').GetGlobal;
 
 // Utility for setting chrome.*.lastError.
 //
 // A utility here is useful for two reasons:
@@ skipping 50 matching lines @@
  * Check whether there is an error set on |targetChrome| without setting
  * |accessedLastError|.
  * @param {Object} targetChrome the Chrome object to check.
  * @return boolean Whether lastError has been set.
  */
 function hasError(targetChrome) {
   if (!targetChrome)
     throw new Error('No target chrome to check');
 
   assertRuntimeIsAvailable();
-  if ('lastError' in targetChrome.runtime)
-    return true;
-
-  return false;
+  return $Object.hasOwnProperty(targetChrome.runtime, 'lastError');
 };
 
 /**
  * Clears the last error on |targetChrome|.
  */
 function clear(targetChrome) {
   if (!targetChrome)
     throw new Error('No target chrome to clear error');
 
   if (GetAvailability('extension.lastError').is_available)
@@ skipping 49 matching lines @@
   console.error("Unchecked runtime.lastError while running " +
       (name || "unknown") + ": " + message + (stack ? "\n" + stack : ""));
 }
 
 exports.$set('clear', clear);
 exports.$set('hasAccessed', hasAccessed);
 exports.$set('hasError', hasError);
 exports.$set('set', set);
 exports.$set('run', run);
 exports.$set('reportIfUnchecked', reportIfUnchecked);