[usecase-wrt][XWALK-2525][XWALK-2579]Add usecase for the feature

Impacted TCs num(approved): New 0, update 2, deleted 0
Unit test platform: [tizen]
Test Result: Pass 2, Fail 0
Merge pull request #1018 from linshen/shenlin/update/XWALK-2525

[usecase-wrt][XWALK-2525][XWALK-2579]Add usecase for the feature