Used oneof in blimp_message.proto

blimp/common/create_blimp_message.h

Index: blimp/common/create_blimp_message.h
diff --git a/blimp/common/create_blimp_message.h b/blimp/common/create_blimp_message.h
index ab8a16dd873e1ea1e89375e3979c6b10ea976e05..57622b983f3d2cd21a67512fb33a8f62e793b274 100644
--- a/blimp/common/create_blimp_message.h
+++ b/blimp/common/create_blimp_message.h
@@ -11,6 +11,7 @@
 #include <string>
 
 #include "blimp/common/blimp_common_export.h"
+#include "blimp/common/proto/blimp_message.pb.h"
 
 namespace blimp {
 
@@ -66,6 +67,9 @@ BLIMP_COMMON_EXPORT std::unique_ptr<BlimpMessage> CreateBlimpMessage(
 BLIMP_COMMON_EXPORT std::unique_ptr<BlimpMessage> CreateBlimpMessage(
     EngineSettingsMessage** engine_settings);
 
+BLIMP_COMMON_EXPORT void SetBlimpMessageType(BlimpMessage* message,
+                                             BlimpMessage::FeatureCase type);
+
 BLIMP_COMMON_EXPORT std::unique_ptr<BlimpMessage> CreateStartConnectionMessage(
     const std::string& client_token,
     int protocol_version);