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

remoting/proto/control.proto

Index: remoting/proto/control.proto
diff --git a/remoting/proto/control.proto b/remoting/proto/control.proto
index e1c29ce3a01d7bf6c5c785e5e88840c106c81c72..88eda00f68fd8c9c0e5d93dd45436d8847417cbc 100644
--- a/remoting/proto/control.proto
+++ b/remoting/proto/control.proto
@@ -47,3 +47,9 @@ message CursorShapeInfo {
   // Cursor pixmap data in 32-bit BGRA format.
   optional bytes data = 5;
 }
+
+message Capabilities {
+  // List of capabilities supported by the sender (case sensitive, capabilities
+  // are separated by spaces).
+  optional string capabilities = 1;
+}