device: Change auto to not deduce raw pointers.

device/usb/usb_service_impl.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/usb/usb_service_impl.h"
 
 #include <stdint.h>
 
 #include <list>
 #include <memory>
@@ skipping 218 matching lines @@
   DeviceMonitorWin* device_monitor = DeviceMonitorWin::GetForAllInterfaces();
   if (device_monitor) {
     device_observer_.Add(device_monitor);
   }
 #endif  // OS_WIN
 }
 
 UsbServiceImpl::~UsbServiceImpl() {
   if (hotplug_enabled_)
     libusb_hotplug_deregister_callback(context_->context(), hotplug_handle_);
-  for (const auto& platform_device : ignored_devices_)
+  for (auto* platform_device : ignored_devices_)
     libusb_unref_device(platform_device);
 }
 
 void UsbServiceImpl::GetDevices(const GetDevicesCallback& callback) {
   DCHECK(CalledOnValidThread());
 
   if (!context_) {
     task_runner()->PostTask(
         FROM_HERE,
         base::Bind(callback, std::vector<scoped_refptr<UsbDevice>>()));
@@ skipping 285 matching lines @@
 }
 
 void UsbServiceImpl::EnumerationFailed(PlatformUsbDevice platform_device,
                                        const base::Closure& refresh_complete) {
   libusb_ref_device(platform_device);
   ignored_devices_.insert(platform_device);
   refresh_complete.Run();
 }
 
 }  // namespace device