Set the initial resolution of an RDP session to the client screen resolution if it is available.

remoting/protocol/session_config.h

Index: remoting/protocol/session_config.h
diff --git a/remoting/protocol/session_config.h b/remoting/protocol/session_config.h
index bca980034a0d525ede43efc33e7d22618a0d1984..ac5f0c193574556c2bdb0476451a84e5a9a650c2 100644
--- a/remoting/protocol/session_config.h
+++ b/remoting/protocol/session_config.h
@@ -82,6 +82,9 @@ class SessionConfig {
     return audio_config_.transport != ChannelConfig::TRANSPORT_NONE;
   }
 
+  // Returns true if the control channel supports capabilities.
+  bool SupportsCapabilities() const;
+
   // Returns a suitable session configuration for use in tests.
   static SessionConfig ForTest();