mac: Make Mach port scopers better ScopedGenerics

base/sys_info_mac.cc

 // Copyright (c) 2012 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 "base/sys_info.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <CoreServices/CoreServices.h>
 #include <mach/mach_host.h>
 #include <mach/mach_init.h>
@@ skipping 28 matching lines @@
       reinterpret_cast<SInt32*>(minor_version));
   Gestalt(gestaltSystemVersionBugFix,
       reinterpret_cast<SInt32*>(bugfix_version));
 }
 
 // static
 int64 SysInfo::AmountOfPhysicalMemory() {
   struct host_basic_info hostinfo;
   mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
   base::mac::ScopedMachSendRight host(mach_host_self());
-  int result = host_info(host,
+  int result = host_info(host.get(),
                          HOST_BASIC_INFO,
                          reinterpret_cast<host_info_t>(&hostinfo),
                          &count);
   if (result != KERN_SUCCESS) {
     NOTREACHED();
     return 0;
   }
   DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
   return static_cast<int64>(hostinfo.max_mem);
 }
@@ skipping 27 matching lines @@
 
 std::string SysInfo::HardwareModelName() {
   char model[256];
   size_t len = sizeof(model);
   if (sysctlbyname("hw.model", model, &len, NULL, 0) == 0)
     return std::string(model, 0, len);
   return std::string();
 }
 
 }  // namespace base