text: // 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.
  
  #ifndef CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_IDENTITY_PROVIDER_H_
  #define CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_IDENTITY_PROVIDER_H_
  
  #include "base/macros.h"
  #include "google_apis/gaia/identity_provider.h"
  
  namespace chromeos {
  
  class DeviceOAuth2TokenService;
  
  // Identity provider implementation backed by DeviceOAuth2TokenService.
  class DeviceIdentityProvider : public IdentityProvider {
   public:
    explicit DeviceIdentityProvider(
        chromeos::DeviceOAuth2TokenService* token_service);
    ~DeviceIdentityProvider() override;
  
    // IdentityProvider:
    std::string GetActiveUsername() override;
    std::string GetActiveAccountId() override;
    OAuth2TokenService* GetTokenService() override;
    bool RequestLogin() override;
  
   private:
    chromeos::DeviceOAuth2TokenService* token_service_;
  
    DISALLOW_COPY_AND_ASSIGN(DeviceIdentityProvider);
  };
  
  }  // namespace chromeos
  
  #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_DEVICE_IDENTITY_PROVIDER_H_
  