[webapi] Integrate 4 tests for W3C Touch Event

Impacted tests(approved): new 4, update 0, delete 0
Unit test platform: [android] crosswalk-10.38.222
Unit test result summary: pass 4, fail 0, block 0
Merge pull request #1146 from xinliux/touch-add-w3c

[webapi] Integrate 4 tests for W3C Touch Event