Apply missing kParentDirectory check

BUG=161564

Review URL: https://chromiumcodereview.appspot.com/11414046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168692 0039d316-1c4b-4281-b951-d872f2087c98
void ChildProcessSecurityPolicyImpl::LockToOrigin(int child_id,
                                                  const GURL& gurl) {
  DCHECK(SiteInstanceImpl::GetSiteForURL(NULL, gurl) == gurl);
  base::AutoLock lock(lock_);
  SecurityStateMap::iterator state = security_state_.find(child_id);
  DCHECK(state != security_state_.end());
  state->second->LockToOrigin(gurl);
}

void ChildProcessSecurityPolicyImpl::LockToOrigin(int child_id,
                                                  const GURL& gurl) {
  DCHECK(SiteInstanceImpl::GetSiteForURL(NULL, gurl) == gurl);
  base::AutoLock lock(lock_);
  SecurityStateMap::iterator state = security_state_.find(child_id);
  DCHECK(state != security_state_.end());
  state->second->LockToOrigin(gurl);
}
