Defines the policy for what types of uris are allowed for particular
This can be used to provide custom rules such as allowing all http:// URIs
for image attributes but only same-origin URIs for anchor tags.
Constructs the default UriPolicy which is to only allow Uris to the same
origin as the application was launched from. [...]
The hash code for this object. [...]
A representation of the runtime type of the object.