Google OAuth Device Flow support for FNL

services/authentication/auth_data.h

Index: services/authentication/auth_data.h
diff --git a/services/authentication/auth_data.h b/services/authentication/auth_data.h
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+// 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.
+
+#ifndef SERVICES_AUTHENTICATION_AUTH_DATA_H_
+#define SERVICES_AUTHENTICATION_AUTH_DATA_H_
+
+#include <string>
+
+namespace authentication {
+
+// AuthData struct is used to persist auth tokens for the authentication
+// service onto a Database file.
+struct AuthData {
+  AuthData();
+  ~AuthData();
+
+  // The user's unique account name such as email id.
+  std::string username;
+  // The type of authentication service provider such as Google, Facebook,
+  // Twitter.
+  std::string auth_provider;
+  // Password or equivalent token grant that acts as the key to user data such
+  // as encrypted password or fully scoped master OAuth token.
+  std::string persistent_credential;
+  // The type of credential whether it is plain password, encrypted password,
+  // fully scoped master OAuth token or downscoped token.
+  std::string persistent_credential_type;
+  // List of permissible scopes for this saved grant.
+  std::string scopes;
+};
+
+// Returns a string representation for AuthData.
+std::string GetAuthDataAsString(const AuthData& auth_data);
+
+// Parses and creates an AuthData instance from a string representation.
+AuthData* GetAuthDataFromString(const std::string& str);
+
+}  // namespace authentication
+
+#endif  // SERVICES_AUTHENTICATION_AUTH_DATA_H_