Android: fix a null pointer exception in printing code

TBR=avayvod@chromium.org

Review URL: https://codereview.chromium.org/85623005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237329 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237329