arc: Implement silent OptIn mode for managed Arc.

chrome/browser/chromeos/arc/arc_auth_context.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 CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_CONTEXT_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_CONTEXT_H_
+
+#include <memory>
+#include <string>
+
+#include "base/macros.h"
+#include "base/timer/timer.h"
+#include "google_apis/gaia/ubertoken_fetcher.h"
+
+class ArcAuthContextDelegate;
+class Profile;
+class ProfileOAuth2TokenService;
+
+namespace content {
+class StoragePartition;
+}
+

[xiyuan, 2016/06/28 21:49:13]

nit: namespace arc { ?

[khmel, 2016/06/29 00:33:40]

Done.

+class ArcAuthContext : public UbertokenConsumer,
+                       public GaiaAuthConsumer,
+                       public OAuth2TokenService::Observer {
+ public:
+  ArcAuthContext(ArcAuthContextDelegate* delegate, Profile* profile);
+  ~ArcAuthContext() override;
+
+  void PrepareContext();
+
+  const std::string& account_id() const { return account_id_; }
+
+  ProfileOAuth2TokenService* token_service() { return token_service_; }

[xiyuan, 2016/06/28 21:49:13]

nit: move the two accessor to the end of declartions, i.e. after all other
public methods

[khmel, 2016/06/29 00:33:40]

Done.

+
+  // OAuth2TokenService::Observer:
+  void OnRefreshTokenAvailable(const std::string& account_id) override;
+  void OnRefreshTokensLoaded() override;
+
+  // UbertokenConsumer:
+  void OnUbertokenSuccess(const std::string& token) override;
+  void OnUbertokenFailure(const GoogleServiceAuthError& error) override;
+
+  // GaiaAuthConsumer:
+  void OnMergeSessionSuccess(const std::string& data) override;
+  void OnMergeSessionFailure(const GoogleServiceAuthError& error) override;
+
+ private:
+  void StartFetchers();
+  void OnRefreshTokenTimeout();
+
+  // Unowned pointers.
+  ArcAuthContextDelegate* const delegate_;
+  ProfileOAuth2TokenService* token_service_;
+
+  bool context_prepared_ = false;
+
+  // Owned by content::BrowserContent. Used to isolate cookies for auth server
+  // communication and shared with Arc OptIn UI platform app.
+  content::StoragePartition* storage_partition_;

[xiyuan, 2016/06/28 21:49:13]

nit: = nullptr ?

[khmel, 2016/06/29 00:33:40]

Done.

+
+  std::string account_id_;
+  std::unique_ptr<GaiaAuthFetcher> merger_fetcher_;
+  std::unique_ptr<UbertokenFetcher> ubertoken_fetcher_;
+  base::OneShotTimer refresh_token_timeout_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcAuthContext);
+};
+
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_AUTH_CONTEXT_H_