public function useCDN($url, $sslUrl) {
    $this->cdnUrl = $url;
    $this->cdnSslUrl = $sslUrl;

    return $this;
  }
public function useCDN($url, $sslUrl) {
    $this->cdnUrl = $url;
    $this->cdnSslUrl = $sslUrl;

    return $this;
  }
public function useCDN ( $ url , $ sslUrl ) { $ this -> cdnUrl = $ url ; $ this -> cdnSslUrl = $ sslUrl ; return $ this ; }
Set the URL to this object in a CDN service.

A CDN may be used to expedite *reading* the object. Write
operations are never performed on a CDN. Since a RemoteObject
can be partially loaded, it is possible that part of the object
is read from a CDN, and part from Swift. However, to accomplish
this would require one to set CDN services in one place, and
not in the other.

Note that if CDN was set using ObjectStorage::useCDN() or
Container::useCDN(), you needn't call this method. CDN will
be automatically enabled during object construction.

Setting this to NULL has the effect of turning off CDN for
this object.

@param string $url
The URL to this object in CDN.
@param string $sslUrl
The SSL URL to this object in CDN.

@retval HPCloud::Storage::ObjectStorage::RemoteObject
@return \HPCloud\Storage\ObjectStorage\RemoteObject
$this for the current object so it can be used in chaining methods.
Set the URL to this object in a CDN service .