<PackageReference Include="System.Security.Permissions" Version="10.0.0-preview.1.25080.5" />

WebBrowserPermission

The WebBrowserPermission object controls the ability to create the WebBrowser control.
namespace System.Security.Permissions { public sealed class WebBrowserPermission : CodeAccessPermission, IUnrestrictedPermission { public WebBrowserPermissionLevel Level { get { return WebBrowserPermissionLevel.Unrestricted; } set { } } public WebBrowserPermission() { } public WebBrowserPermission(PermissionState state) { } public WebBrowserPermission(WebBrowserPermissionLevel webBrowserPermissionLevel) { } public bool IsUnrestricted() { return true; } public override bool IsSubsetOf(IPermission target) { return true; } public override IPermission Intersect(IPermission target) { return new WebBrowserPermission(); } public override IPermission Union(IPermission target) { return new WebBrowserPermission(); } public override IPermission Copy() { return new WebBrowserPermission(); } public override SecurityElement ToXml() { return null; } public override void FromXml(SecurityElement securityElement) { } } }