Fix line endings in four files (no code change)

BUG=302437
TBR=joi

Review URL: https://codereview.chromium.org/27622004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229100 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229100