[webapi]Change ref test in webapi-style-css3-tests

Impacted tests(approved):new 0,update 5,delete 0
Unit test platform:[Android]
Unit test result summary:pass 5,fail 0,block 0
Merge pull request #935 from chenxix/chenxi/misc-uiautomation/update-style-attr

[webapi]Change ref test in webapi-style-css3-tests