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

base/files/important_file_writer.cc

 // Copyright (c) 2011 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/files/important_file_writer.h"
 
 #include <stdio.h>
-
 #include <string>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/critical_closure.h"
 #include "base/debug/alias.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/numerics/safe_conversions.h"
@@ skipping 164 matching lines @@
   if (!timer_.IsRunning()) {
     timer_.Start(FROM_HERE, commit_interval_, this,
                  &ImportantFileWriter::DoScheduledWrite);
   }
 }
 
 void ImportantFileWriter::DoScheduledWrite() {
   DCHECK(serializer_);
   scoped_ptr<std::string> data(new std::string);
   if (serializer_->SerializeData(data.get())) {
-    WriteNow(data.Pass());
+    WriteNow(std::move(data));
   } else {
     DLOG(WARNING) << "failed to serialize data to be saved in "
                   << path_.value();
   }
   serializer_ = nullptr;
 }
 
 void ImportantFileWriter::RegisterOnNextSuccessfulWriteCallback(
     const Closure& on_next_successful_write) {
   DCHECK(on_next_successful_write_.is_null());
@@ skipping 21 matching lines @@
 
 void ImportantFileWriter::ForwardSuccessfulWrite(bool result) {
   DCHECK(CalledOnValidThread());
   if (result && !on_next_successful_write_.is_null()) {
     on_next_successful_write_.Run();
     on_next_successful_write_.Reset();
   }
 }
 
 }  // namespace base