[webapi]Update reference files for CSS3 Style tests to reflect latest W3C repo

Impacted tests(approved):new 0,update 6,delete 0
Unit test platform:[android]
Unit test result summary:pass 6,fail 0,block 0
Merge pull request #1187 from chenxix/upstream/update-style

[webapi]Update reference files for CSS3 Style tests to reflect latest W3C repo