Implement hyphenation for DumpRenderTree.
This change implements the platform functions added by my WebKit change r124434 <http://trac.webkit.org/changeset/124434> for DumpRenderTree. It is a simplified version of my r146964 <http://crrev.com/146964>.

BUG=47083
TEST=hyphen*.html

Review URL: https://chromiumcodereview.appspot.com/11014014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@160044 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed