W3C Test: Import web-platform-tests/html/syntax.

Tools/Scripts/webkitpy/w3c/test_converter.py

Index: Tools/Scripts/webkitpy/w3c/test_converter.py
diff --git a/Tools/Scripts/webkitpy/w3c/test_converter.py b/Tools/Scripts/webkitpy/w3c/test_converter.py
index 05e46dde047f9d0fa41a0c557eea95c544e1014b..54de1ee262670b092a813fb52e350729d209c10f 100755
--- a/Tools/Scripts/webkitpy/w3c/test_converter.py
+++ b/Tools/Scripts/webkitpy/w3c/test_converter.py
@@ -46,7 +46,7 @@ def convert_for_webkit(new_path, filename, reference_support_info, host=Host()):
     contents = host.filesystem.read_binary_file(filename)
     converter = _W3CTestConverter(new_path, filename, reference_support_info, host)
     if filename.endswith('.css'):
-        return converter.add_webkit_prefix_to_unprefixed_properties(contents)
+        return converter.add_webkit_prefix_to_unprefixed_properties(contents.decode('utf-8'))
     else:
         converter.feed(contents.decode('utf-8'))
         converter.close()