add newline to end of file

BUG=none
TBR=hclam@chromium.org

Review URL: https://codereview.chromium.org/25971002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226957 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226957