base: Use std::move() instead of Pass() for real movable types.

base/memory/shared_memory_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/memory/shared_memory.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <mach/mach_vm.h>
 #include <sys/mman.h>
@@ skipping 313 matching lines @@
   struct stat stat;
   if (fstat(fileno(fp.get()), &stat) != 0)
     return false;
   const size_t current_size = stat.st_size;
   if (current_size != options.size) {
     if (HANDLE_EINTR(ftruncate(fileno(fp.get()), options.size)) != 0)
       return false;
   }
   requested_size_ = options.size;
 
-  return PrepareMapFile(fp.Pass(), readonly_fd.Pass());
+  return PrepareMapFile(std::move(fp), std::move(readonly_fd));
 }
 
 bool SharedMemory::MapAt(off_t offset, size_t bytes) {
   if (!shm_.IsValid())
     return false;
   if (bytes > static_cast<size_t>(std::numeric_limits<int>::max()))
     return false;
   if (memory_)
     return false;
 
@@ skipping 146 matching lines @@
 
   if (close_self) {
     Unmap();
     Close();
   }
 
   return true;
 }
 
 }  // namespace base