[usecase][xwalk-726] Update one usecase for Advertising

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0
Merge pull request #1300 from wanghongjuan/usecase/xwalk-726-ad

[usecase][xwalk-726] Update one usecase for Advertising