Protocol-level changes required to support PIN-less authentication.

remoting/protocol/host_stub.h

Index: remoting/protocol/host_stub.h
diff --git a/remoting/protocol/host_stub.h b/remoting/protocol/host_stub.h
index 03f3b0857bda3b8b325992869d1b62fb7933f2d7..d7d5475db2ff74e6aa99ed34d9e0576952be0697 100644
--- a/remoting/protocol/host_stub.h
+++ b/remoting/protocol/host_stub.h
@@ -14,10 +14,12 @@
 namespace remoting {
 namespace protocol {
 
+class AudioControl;
 class Capabilities;
 class ClientResolution;
+class PairingResponse;
+class PairingRequest;
 class VideoControl;
-class AudioControl;
 
 class HostStub {
  public:
@@ -38,6 +40,11 @@ class HostStub {
   // Passes the set of capabilities supported by the client to the host.
   virtual void SetCapabilities(const Capabilities& capabilities) = 0;
 
+  // Requests pairing between the host and client for PIN-less authentication.
+  // TODO(jamiewalch): Make this pure virtual once the PIN-less authentication
+  // implementation CLs have landed.
+  virtual void RequestPairing(const PairingRequest& pairing_request) {}
+
  protected:
   virtual ~HostStub() {}