Set SVN attribute eol-style on some files.

This is an attempt to make the try bots able to modify these files.

Got problems with https://codereview.chromium.org/25687002


git-svn-id: svn://svn.chromium.org/blink/trunk@159030 bbb929c8-8fbe-4397-9dbb-9b2b20218538
tree: c494f74b8f5daa4f6ec04e15f2176509d2532364
  1. third_party/