Fix compilation failure on Mac and Linux
Fix compilation failure on Mac and Linux

BUG=none
TEST=none
TBR=jshin


Review URL: http://codereview.chromium.org/174304

git-svn-id: http://src.chromium.org/svn/trunk/src@24074 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: bc5d2e163af7b992488fdfe24e40fd25273b139b
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser