Webplayer security related class.
| GetChainOfTrustValue | Get secret from Chain of Trust system. | 
| LoadAndVerifyAssembly | Loads an assembly and checks that it is allowed to be used in the webplayer.Note: The single argument version of this API will always issue an error message. An authorisation key is always needed. | 
| PrefetchSocketPolicy | Prefetch the webplayer socket security policy from a non-default port number. |