More detailed implementation of the RequestPicker

components/offline_pages/background/device_conditions.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_OFFLINE_PAGES_BACKGROUND_DEVICE_CONDITIONS_H_
 #define COMPONENTS_OFFLINE_PAGES_BACKGROUND_DEVICE_CONDITIONS_H_
 
 #include "net/base/network_change_notifier.h"
 
 namespace offline_pages {
 
 // Device network and power conditions.
 class DeviceConditions {
  public:
   DeviceConditions(
       bool power_connected,
       int battery_percentage,
       net::NetworkChangeNotifier::ConnectionType net_connection_type)
       : power_connected_(power_connected),
         battery_percentage_(battery_percentage),
         net_connection_type_(net_connection_type) {}
 
+  DeviceConditions()
+      : power_connected_(false), battery_percentage_(0),
+        net_connection_type_(net::NetworkChangeNotifier::CONNECTION_NONE) {}
+
+  DeviceConditions(const DeviceConditions& other)
+      : power_connected_(other.power_connected_),
+      battery_percentage_(other.battery_percentage_),
+      net_connection_type_(other.net_connection_type_) {}
+
   // Returns whether power is connected.
   bool IsPowerConnected() const { return power_connected_; }
 
   // Returns percentage of remaining battery power (0-100).
   int GetBatteryPercentage() const { return battery_percentage_; }
 
   // Returns the current type of network connection, if any.
   net::NetworkChangeNotifier::ConnectionType GetNetConnectionType() const {
     return net_connection_type_;
   }
 
  private:
   const bool power_connected_;
   const int battery_percentage_;
   const net::NetworkChangeNotifier::ConnectionType net_connection_type_;
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_DEVICE_CONDITIONS_H_