Convert SerialDeviceInfo to a Mojo struct.

device/serial/serial_device_enumerator_mac.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 "device/serial/serial_device_enumerator_mac.h"
 
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
-#include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 
 namespace device {
 
 // static
 scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
   return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorMac());
 }
 
 SerialDeviceEnumeratorMac::SerialDeviceEnumeratorMac() {}
 
 SerialDeviceEnumeratorMac::~SerialDeviceEnumeratorMac() {}
 
 // TODO(rockot): Use IOKit to enumerate serial interfaces.
-void SerialDeviceEnumeratorMac::GetDevices(SerialDeviceInfoList* devices) {
+mojo::Array<SerialDeviceInfoPtr> SerialDeviceEnumeratorMac::GetDevices() {
   const base::FilePath kDevRoot("/dev");
   const int kFilesAndSymLinks =
       base::FileEnumerator::FILES | base::FileEnumerator::SHOW_SYM_LINKS;
 
   std::set<std::string> valid_patterns;
   valid_patterns.insert("/dev/*Bluetooth*");
   valid_patterns.insert("/dev/*Modem*");
   valid_patterns.insert("/dev/*bluetooth*");
   valid_patterns.insert("/dev/*modem*");
   valid_patterns.insert("/dev/*serial*");
   valid_patterns.insert("/dev/tty.*");
   valid_patterns.insert("/dev/cu.*");
 
-  devices->clear();
+  mojo::Array<SerialDeviceInfoPtr> devices;
   base::FileEnumerator enumerator(kDevRoot, false, kFilesAndSymLinks);
   do {
     const base::FilePath next_device_path(enumerator.Next());
     const std::string next_device = next_device_path.value();
     if (next_device.empty())
       break;
 
     std::set<std::string>::const_iterator i = valid_patterns.begin();
     for (; i != valid_patterns.end(); ++i) {
       if (MatchPattern(next_device, *i)) {
-        linked_ptr<SerialDeviceInfo> info(new SerialDeviceInfo);
-        info->path = next_device;
-        devices->push_back(info);
+        SerialDeviceInfoPtr info(SerialDeviceInfo::New());
+        info->path = mojo::String::From(next_device);

[darin (slow to review), 2014/06/16 16:59:19]

use of mojo::String::From here is unnecessary. you can just assign a std::string
to a mojo::String.

[Sam McNally, 2014/06/17 07:07:20]

Done.

+        devices.push_back(info.Pass());
         break;
       }
     }
   } while (true);
+  return devices.Pass();
 }
 
 }  // namespace device