Expose ClientSession details to Host Extensions

remoting/host/security_key/gnubby_extension.cc

Index: remoting/host/security_key/gnubby_extension.cc
diff --git a/remoting/host/security_key/gnubby_extension.cc b/remoting/host/security_key/gnubby_extension.cc
index 3177766998bbd521328e2a1e8c6c7838b45fec9a..a4d24f7eed121bd8e3580fb97ece149600ba4874 100644
--- a/remoting/host/security_key/gnubby_extension.cc
+++ b/remoting/host/security_key/gnubby_extension.cc
@@ -25,10 +25,12 @@ std::string GnubbyExtension::capability() const {
 
 std::unique_ptr<HostExtensionSession> GnubbyExtension::CreateExtensionSession(
     ClientSessionControl* client_session_control,
+    ClientSessionDetails* client_session_details,
     protocol::ClientStub* client_stub) {
   // TODO(joedow): Update this mechanism to allow for multiple sessions.  The
   //               extension will only send messages through the initial
   //               |client_stub| with the current design.
+  // TODO(joedow): Update GnubbyExtensionSession for |client_session_details|.
   return base::WrapUnique(new GnubbyExtensionSession(client_stub));
 }