Validate that paths don't contain embedded NULLs at deserialization.

BUG=166867

Review URL: https://chromiumcodereview.appspot.com/11743009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@174935 0039d316-1c4b-4281-b951-d872f2087c98
void ParamTraits<LOGFONT>::Write(Message* m, const param_type& p) {
  m->WriteData(reinterpret_cast<const char*>(&p), sizeof(LOGFONT));
}

void ParamTraits<LOGFONT>::Write(Message* m, const param_type& p) {
  m->WriteData(reinterpret_cast<const char*>(&p), sizeof(LOGFONT));
}
