Merge "Refactoring: Add null checking." into tizen_2.3
authorJinhyung Choi <jinhyung2.choi@samsung.com>
Thu, 18 Sep 2014 05:38:42 +0000 (14:38 +0900)
committerGerrit Code Review <gerrit2@twin.s-core.co.kr>
Thu, 18 Sep 2014 05:38:42 +0000 (14:38 +0900)

Trivial merge