Add chrome.runtime.getPackageDirectoryEntry.

chrome/test/data/extensions/api_test/runtime/get_package_directory/extension/test.js

Index: chrome/test/data/extensions/api_test/runtime/get_package_directory/extension/test.js
diff --git a/chrome/test/data/extensions/api_test/runtime/get_package_directory/extension/test.js b/chrome/test/data/extensions/api_test/runtime/get_package_directory/extension/test.js
new file mode 100644
index 0000000000000000000000000000000000000000..474a8ae384736fb38e3f76063f5d5ae629899cb1
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/runtime/get_package_directory/extension/test.js
@@ -0,0 +1,30 @@
+// Copyright 2013 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.
+
+expectedDirectoryEntries = [
+  'manifest.json',
+  'test.js'
+];
+
+chrome.test.runTests([
+  function getPackageDirectoryEntry() {
+    chrome.runtime.getPackageDirectoryEntry(chrome.test.callbackPass(
+        function(directoryEntry) {
+      var directoryReader = directoryEntry.createReader();
+      var directoryContents = [];
+      directoryReader.readEntries(chrome.test.callbackPass(
+          function readEntriesCallback(entries) {
+        if (entries.length == 0) {
+          directoryContents.sort();
+          chrome.test.assertEq(expectedDirectoryEntries, directoryContents);
+        } else {
+          for (var i = 0; i < entries.length; i++) {
+            directoryContents.push(entries[i].name);
+          }
+          directoryReader.readEntries(readEntriesCallback);
+        }
+      }));
+    }));
+  }
+]);