Mojo bindings: merge the control messages of sending disconnect reason and notifying endpoint close…

mojo/public/cpp/bindings/lib/control_message_proxy.h

Index: mojo/public/cpp/bindings/lib/control_message_proxy.h
diff --git a/mojo/public/cpp/bindings/lib/control_message_proxy.h b/mojo/public/cpp/bindings/lib/control_message_proxy.h
index d2f154e77b5d51e59f3a2abb2dd6bbd427b2d364..2f9314ebf0023edf3646ce62e77e969dc0a72489 100644
--- a/mojo/public/cpp/bindings/lib/control_message_proxy.h
+++ b/mojo/public/cpp/bindings/lib/control_message_proxy.h
@@ -7,16 +7,15 @@
 
 #include <stdint.h>
 
-#include <string>
-
 #include "base/callback.h"
 #include "base/macros.h"
 #include "mojo/public/cpp/bindings/bindings_export.h"
 #include "mojo/public/cpp/bindings/lib/serialization_context.h"
-#include "mojo/public/cpp/bindings/message.h"
 
 namespace mojo {
 
+class MessageReceiverWithResponder;
+
 namespace internal {
 
 // Proxy for request messages defined in interface_control_messages.mojom.
@@ -30,15 +29,8 @@ class MOJO_CPP_BINDINGS_EXPORT ControlMessageProxy {
   void RequireVersion(uint32_t version);
 
   void FlushForTesting();
-  void SendDisconnectReason(uint32_t custom_reason,
-                            const std::string& description);
-
   void OnConnectionError();
 
-  static Message ConstructDisconnectReasonMessage(
-      uint32_t custom_reason,
-      const std::string& description);
-
  private:
   void RunFlushForTestingClosure();