document.lastModified should consider user's local time zone

LayoutTests/http/tests/resources/last-modified.php

Index: LayoutTests/http/tests/resources/last-modified.php
diff --git a/LayoutTests/http/tests/resources/last-modified.php b/LayoutTests/http/tests/resources/last-modified.php
index 55c52220de5e06af50c4e8e46e48a66d7f9b3a19..114789c325bc5e6535798841378fcec15f7873f1 100644
--- a/LayoutTests/http/tests/resources/last-modified.php
+++ b/LayoutTests/http/tests/resources/last-modified.php
@@ -1,7 +1,14 @@
 <?php
     $date = $_GET['date'];
+    $expected = $_GET['expected'];
     header("Last-Modified: $date");
 ?>
 <script>
-document.write(document.lastModified);
+var expected = '<?=$expected?>';
+var lastModified = document.lastModified;
+if (expected == lastModified) {
+    document.write('PASS');
+} else {
+    document.write('FAIL');

[tkent, 2014/07/22 00:48:41]

We had better show |expected| and |lastModified|.

[kangil_, 2014/07/23 06:35:53]

Done.

+}
 </script>