Convert Pass()→std::move() in //chromeos

chromeos/dbus/pipe_reader.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 "chromeos/dbus/pipe_reader.h"
 
 #include "base/bind.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/task_runner.h"
 #include "net/base/file_stream.h"
@@ skipping 26 matching lines @@
       base::File(pipe_fds[0]), task_runner_));
 
   // Post an initial async read to setup data collection
   int rv = data_stream_->Read(
       io_buffer_.get(), io_buffer_->size(),
       base::Bind(&PipeReader::OnDataReady, weak_ptr_factory_.GetWeakPtr()));
   if (rv != net::ERR_IO_PENDING) {
     LOG(ERROR) << "Unable to post initial read";
     return base::File();
   }
-  return pipe_write_end.Pass();
+  return pipe_write_end;
 }
 
 void PipeReader::OnDataReady(int byte_count) {
   DVLOG(1) << "OnDataReady byte_count " << byte_count;
   if (byte_count <= 0) {
     callback_.Run();  // signal creator to take data and delete us
     return;
   }
 
   AcceptData(io_buffer_->data(), byte_count);
@@ skipping 16 matching lines @@
 
 void PipeReaderForString::AcceptData(const char *data, int byte_count) {
   data_.append(data, byte_count);
 }
 
 void PipeReaderForString::GetData(std::string* data) {
   data_.swap(*data);
 }
 
 }  // namespace chromeos