mac: Make Mach port scopers better ScopedGenerics

ipc/attachment_broker_privileged_mac.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ipc/attachment_broker_privileged_mac.h"
 
 #include "base/mac/scoped_mach_port.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "ipc/attachment_broker_messages.h"
@@ skipping 213 matching lines @@
                               &send_once_right, &send_right_type);
   if (kr != KERN_SUCCESS) {
     // TODO(erikchen): UMA metric.
     mach_port_deallocate(task_port, endpoint);
     return MACH_PORT_NULL;
   }
   DCHECK_EQ(static_cast<mach_msg_type_name_t>(MACH_MSG_TYPE_PORT_SEND_ONCE),
             send_right_type);
 
   // This call takes ownership of |send_once_right|.
-  kr = SendMachPort(send_once_right, port_to_insert, MACH_MSG_TYPE_COPY_SEND);
+  kr = SendMachPort(
+      send_once_right, port_to_insert.get(), MACH_MSG_TYPE_COPY_SEND);
   if (kr != KERN_SUCCESS) {
     // TODO(erikchen): UMA metric.
     mach_port_deallocate(task_port, endpoint);
     return MACH_PORT_NULL;
   }
 
   // Endpoint is intentionally leaked into the destination task. An IPC must be
   // sent to the destination task so that it can clean up this port.
   return endpoint;
 }
@@ skipping 40 matching lines @@
 
 AttachmentBrokerPrivilegedMac::MachPortWireFormat
 AttachmentBrokerPrivilegedMac::CopyWireFormat(
     const MachPortWireFormat& wire_format,
     uint32_t mach_port) {
   return MachPortWireFormat(mach_port, wire_format.destination_process,
                             wire_format.attachment_id);
 }
 
 }  // namespace IPC