win: Add version to client registration request

client/crashpad_client_win.cc

Index: client/crashpad_client_win.cc
diff --git a/client/crashpad_client_win.cc b/client/crashpad_client_win.cc
index 495dde4fd634e35016823668357e810081b06f86..b2ab03a03112e4e727b7d33422406dac59ed98f0 100644
--- a/client/crashpad_client_win.cc
+++ b/client/crashpad_client_win.cc
@@ -105,6 +105,7 @@ bool CrashpadClient::SetHandler(const std::string& ipc_port) {
   ClientToServerMessage message;
   memset(&message, 0, sizeof(message));
   message.type = ClientToServerMessage::kRegister;
+  message.registration.version = RegistrationRequest::kMessageVersion;
   message.registration.client_process_id = GetCurrentProcessId();
   message.registration.exception_information =
       reinterpret_cast<WinVMAddress>(&g_exception_information);