[behavior][misc][XWALK-1691][XWALK-1811]Fix XWALK-1691/1811

Impacted TCs num(approved): New 0, update 2, deleted 1
Unit test platform: [tizen]
Unit test result summary: Pass 2 , Fail 0, Blocked  0
Merge pull request #317 from linshen/fix-xwalk-1691/1811

[behavior-misc][XWALK-1691][XWALK-1811]Fix XWALK-1691/1811