Mach port scopers should use get() instead of type conversion operators

handler/mac/exception_handler_server.h

Index: handler/mac/exception_handler_server.h
diff --git a/handler/mac/exception_handler_server.h b/handler/mac/exception_handler_server.h
index 37c61a0f48652b7faa0a0b2d445b614bf1bc43a8..83e131be7c22275edeab9c9f9d5e3058c009c9ec 100644
--- a/handler/mac/exception_handler_server.h
+++ b/handler/mac/exception_handler_server.h
@@ -57,7 +57,7 @@ class ExceptionHandlerServer {
   //!
   //! The caller does not take ownership of this port. The caller must not use
   //! this port for any purpose other than to make send rights for clients.
-  mach_port_t receive_port() const { return receive_port_; }
+  mach_port_t receive_port() const { return receive_port_.get(); }
 
  private:
   base::mac::ScopedMachReceiveRight receive_port_;