Upstream ProfileOAuth2TokenServiceProviderImpl.

ios/chrome/browser/signin/profile_oauth2_token_service_ios_provider_impl.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 IOS_CHROME_BROWSER_SIGNIN_PROFILE_OAUTH2_TOKEN_SERVICE_IOS_PROVIDER_IMPL_H_
+#define IOS_CHROME_BROWSER_SIGNIN_PROFILE_OAUTH2_TOKEN_SERVICE_IOS_PROVIDER_IMPL_H_
+
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "components/signin/ios/browser/profile_oauth2_token_service_ios_provider.h"
+
+// Implementation of ProfileOAuth2TokenServiceIOSProvider.
+class ProfileOAuth2TokenServiceIOSProviderImpl
+    : public ProfileOAuth2TokenServiceIOSProvider {
+ public:
+  ProfileOAuth2TokenServiceIOSProviderImpl();
+  ~ProfileOAuth2TokenServiceIOSProviderImpl() override;
+
+  // ios::ProfileOAuth2TokenServiceIOSProvider
+  void GetAccessToken(const std::string& gaia_id,
+                      const std::string& client_id,
+                      const std::string& client_secret,
+                      const std::set<std::string>& scopes,
+                      const AccessTokenCallback& callback) override;
+  std::vector<AccountInfo> GetAllAccounts() const override;
+  AuthenticationErrorCategory GetAuthenticationErrorCategory(
+      const std::string& gaia_id,
+      NSError* error) const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ProfileOAuth2TokenServiceIOSProviderImpl);
+};
+
+#endif  // IOS_CHROME_BROWSER_SIGNIN_PROFILE_OAUTH2_TOKEN_SERVICE_IOS_PROVIDER_IMPL_H_