Revert "[behavior][xwalk-2935] Delete one test from behavior"
Merge pull request #1383 from crosswalk-project/revert-1374-behavior/xwalk-2935

Revert "[behavior][xwalk-2935] Delete one test from behavior"
[usecase] Add 2 usecases for Speech API

Impacted tests(approved): new 1, update 1, delete 0
Unit test platform: [IVI]
Unit test result summary: pass 0, fail 2, block 0
Merge pull request #1382 from kangxu/kangxu/usecase/webspeech

[usecase] Add 2 usecases for Speech API