[sample-wrt][xwalk-2871] Update one case for demo-express
[sample-wrt][xwalk-2871] Update one case for demo-express

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0

zhuyongyong/demo-express,zhuyongyong/demo-express,kangxu/demo-express,kangxu/demo-express,axinging/demo-express,axinging/demo-express,chunywang/demo-express,haoxli/demo-express,axinging/demo-express,chunywang/demo-express,chunywang/demo-express,yunxliu/demo-express,axinging/demo-express,yunxliu/demo-express,yunxliu/demo-express,kangxu/demo-express,zhuyongyong/demo-express,chunywang/demo-express,haoxli/demo-express,zhuyongyong/demo-express,yunxliu/demo-express,wanghongjuan/demo-express,wanghongjuan/demo-express,wanghongjuan/demo-express,haoxli/demo-express,haoxli/demo-express,kangxu/demo-express,wanghongjuan/demo-express