Convert HidDeviceInfo from a struct to a refcounted class.

device/hid/hid_device_info.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/hid/hid_device_info.h"
 
 namespace device {
 
 const char kInvalidHidDeviceId[] = "";
 
 HidDeviceInfo::HidDeviceInfo()
-    : device_id(kInvalidHidDeviceId),
-      vendor_id(0),
-      product_id(0),
-      bus_type(kHIDBusTypeUSB),
-      has_report_id(false),
-      max_input_report_size(0),
-      max_output_report_size(0),
-      max_feature_report_size(0) {
+    : device_id_(kInvalidHidDeviceId),
+      vendor_id_(0),
+      product_id_(0),
+      bus_type_(kHIDBusTypeUSB),
+      has_report_id_(false),
+      max_input_report_size_(0),
+      max_output_report_size_(0),
+      max_feature_report_size_(0) {
 }
 
 HidDeviceInfo::~HidDeviceInfo() {}
 
 }  // namespace device