fix build break on revert at 234239

TBR=zturner@chromium.org
BUG=286609,317428,312277

Review URL: https://codereview.chromium.org/68113005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234240 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234240