In test_parser, skip files with non-ascii tags, and emit an error.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py
index f4b1686454d0842d4ccb88c3fcc6a61cd943377b..04d965447e143fe661e58c75c24bdd4817afdeb9 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser_unittest.py
@@ -223,3 +223,10 @@ CONTENT OF TEST
         self.assertEqual(parser.filename, 'some/bogus/path.html')
         self.assertIsNone(parser.test_doc)
         self.assertIsNone(parser.ref_doc)
+
+    def test_load_file_with_non_ascii_tags(self):
+        host = MockHost()
+        host.filesystem.files['/some/path.xml'] = '<d\xc3\x98dd></d\xc3\x98dd>'
+        parser = TestParser('/some/path.xml', host)
+        self.assertEqual(parser.filename, '/some/path.xml')
+        self.assertIsNone(parser.test_doc)