Convert Pass()→std::move() for iOS build.

net/disk_cache/blockfile/file_ios.cc

 // Copyright 2014 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 "net/disk_cache/blockfile/file.h"
 
 #include <limits.h>
 #include <stdint.h>
 
 #include <limits>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/threading/worker_pool.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/blockfile/in_flight_io.h"
 #include "net/disk_cache/disk_cache.h"
 
@@ skipping 145 matching lines @@
   DCHECK(s_file_operations);
   delete s_file_operations;
   s_file_operations = NULL;
 }
 
 }  // namespace
 
 namespace disk_cache {
 
 File::File(base::File file)
-    : init_(true),
-      mixed_(true),
-      base_file_(file.Pass()) {
-}
+    : init_(true), mixed_(true), base_file_(std::move(file)) {}
 
 bool File::Init(const base::FilePath& name) {
   if (base_file_.IsValid())
     return false;
 
   int flags = base::File::FLAG_OPEN | base::File::FLAG_READ |
               base::File::FLAG_WRITE;
   base_file_.Initialize(name, flags);
   return base_file_.IsValid();
 }
@@ skipping 104 matching lines @@
     return false;
 
   GetFileInFlightIO()->PostWrite(this, buffer, buffer_len, offset, callback);
 
   if (completed)
     *completed = false;
   return true;
 }
 
 }  // namespace disk_cache