Expose ClientSession details to Host Extensions

remoting/host/security_key/gnubby_extension.h

Index: remoting/host/security_key/gnubby_extension.h
diff --git a/remoting/host/security_key/gnubby_extension.h b/remoting/host/security_key/gnubby_extension.h
index 79c85f0b6c0857ad85eac2b54bbeaf989d9f0844..850e238e2596ed5c2cf979ae18e981ef5a92a73f 100644
--- a/remoting/host/security_key/gnubby_extension.h
+++ b/remoting/host/security_key/gnubby_extension.h
@@ -13,6 +13,10 @@
 
 namespace remoting {
 
+class ClientSessionControl;
+class ClientSessionDetails;
+class HostExtensionSession;
+
 // GnubbyExtension extends HostExtension to enable Security Key support.
 class GnubbyExtension : public HostExtension {
  public:
@@ -23,6 +27,7 @@ class GnubbyExtension : public HostExtension {
   std::string capability() const override;
   std::unique_ptr<HostExtensionSession> CreateExtensionSession(
       ClientSessionControl* client_session_control,
+      ClientSessionDetails* client_session_details,
       protocol::ClientStub* client_stub) override;
 
  private: