Verify lfFaceName is NUL terminated in IPC deserializer.

BUG=162066

Review URL: https://chromiumcodereview.appspot.com/11416115

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168937 0039d316-1c4b-4281-b951-d872f2087c98
 void ParamTraits<LOGFONT>::Log(const param_type& p, std::string* l) {
  l->append(StringPrintf("<LOGFONT>"));
}

 void ParamTraits<LOGFONT>::Log(const param_type& p, std::string* l) {
  l->append(StringPrintf("<LOGFONT>"));
}
