BUG=56843
TEST=none

Review URL: http://codereview.chromium.org/5008004
Patch from James Maclean <wjmaclean@chromium.org>.

TBR=scottbyer@google.com
Review URL: http://codereview.chromium.org/5137002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66473 0039d316-1c4b-4281-b951-d872f2087c98