[usecase][XWALK-2900] Fix unexpected token error

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [IVI] crosswalk-10.38.222, t-e-c 0.107
Unit test result summary: pass 1, fail 0, block 0
Merge pull request #1153 from xinliux/notification/xwalk-2900

[usecase][XWALK-2900] Fix unexpected token error