device: Change auto to not deduce raw pointers.

device/vr/test/fake_vr_device_provider.cc

 // Copyright 2015 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/vr/test/fake_vr_device_provider.h"
 
 namespace device {
 
 FakeVRDeviceProvider::FakeVRDeviceProvider() : VRDeviceProvider() {
   initialized_ = false;
@@ skipping 12 matching lines @@
       iter = devices_.erase(iter);
     } else {
       ++iter;
     }
   }
 }
 
 void FakeVRDeviceProvider::GetDevices(std::vector<VRDevice*>* devices) {
   std::vector<VRDevice*>::iterator iter;
 
-  for (auto device : devices_) {
+  for (auto* device : devices_) {
     devices->push_back(device);
   }
 }
 
 void FakeVRDeviceProvider::Initialize() {
   initialized_ = true;
 }
 
 }  // namespace device