Update references to the extension messaging APIs to point to the "runtime"

chrome/test/data/extensions/context_menus/long_title/test.js

Index: chrome/test/data/extensions/context_menus/long_title/test.js
diff --git a/chrome/test/data/extensions/context_menus/long_title/test.js b/chrome/test/data/extensions/context_menus/long_title/test.js
index b807e38fa1f88bf8bfe40daa51f586c0113d6181..e6b0ad5a2575381e1131059c8d4463d0e76031b3 100644
--- a/chrome/test/data/extensions/context_menus/long_title/test.js
+++ b/chrome/test/data/extensions/context_menus/long_title/test.js
@@ -10,7 +10,7 @@ window.onload = function() {
   }
   chrome.test.log("creating item");
   chrome.contextMenus.create({"title":title}, function() {
-    if (!chrome.extension.lastError) {
+    if (!chrome.runtime.lastError) {
       chrome.test.sendMessage("created");
     }
   });