Refactor AO2TS to make it easier to componentize.

chrome/browser/signin/android_profile_oauth2_token_service.h

-// Copyright 2013 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_SIGNIN_ANDROID_PROFILE_OAUTH2_TOKEN_SERVICE_H_
-#define CHROME_BROWSER_SIGNIN_ANDROID_PROFILE_OAUTH2_TOKEN_SERVICE_H_
-
-#include <jni.h>
-#include <string>
-
-#include "base/android/jni_weak_ref.h"
-#include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-#include "components/signin/core/browser/profile_oauth2_token_service.h"
-#include "google_apis/gaia/google_service_auth_error.h"
-
-// A specialization of ProfileOAuth2TokenService that will be returned by
-// ProfileOAuth2TokenServiceFactory for OS_ANDROID.  This instance uses
-// native Android features to lookup OAuth2 tokens.
-//
-// See |ProfileOAuth2TokenService| for usage details.
-//
-// Note: requests should be started from the UI thread. To start a
-// request from other thread, please use OAuth2TokenServiceRequest.
-class AndroidProfileOAuth2TokenService : public ProfileOAuth2TokenService {
- public:
-  // Registers the AndroidProfileOAuth2TokenService's native methods through
-  // JNI.
-  static bool Register(JNIEnv* env);
-
-  // Creates a new instance of the AndroidProfileOAuth2TokenService.
-  static AndroidProfileOAuth2TokenService* Create();
-
-  // Returns a reference to the Java instance of this service.
-  static jobject GetForProfile(
-      JNIEnv* env, jclass clazz, jobject j_profile_android);
-
-  // Called by the TestingProfile class to disable account validation in
-  // tests.  This prevents the token service from trying to look up system
-  // accounts which requires special permission.
-  static void set_is_testing_profile() {
-    is_testing_profile_ = true;
-  }
-
-  // ProfileOAuth2TokenService overrides:
-  void Initialize(SigninClient* client,
-                  SigninErrorController* signin_error_controller) override;
-  bool RefreshTokenIsAvailable(const std::string& account_id) const override;
-  void UpdateAuthError(const std::string& account_id,
-                       const GoogleServiceAuthError& error) override;
-  std::vector<std::string> GetAccounts() override;
-
-  // Lists account at the OS level.
-  std::vector<std::string> GetSystemAccounts();
-
-  void ValidateAccounts(JNIEnv* env,
-                        jobject obj,
-                        jstring current_account,
-                        jboolean force_notifications);
-
-  // Takes a the signed in sync account as well as all the other
-  // android account ids and check the token status of each.  If
-  // |force_notifications| is true, TokenAvailable notifications will
-  // be sent anyway, even if the account was already known.
-  void ValidateAccounts(const std::string& signed_in_account,
-                        bool force_notifications);
-
-  // Triggers a notification to all observers of the OAuth2TokenService that a
-  // refresh token is now available. This may cause observers to retry
-  // operations that require authentication.
-  virtual void FireRefreshTokenAvailableFromJava(JNIEnv* env,
-                                                 jobject obj,
-                                                 const jstring account_name);
-  // Triggers a notification to all observers of the OAuth2TokenService that a
-  // refresh token is now available.
-  virtual void FireRefreshTokenRevokedFromJava(JNIEnv* env,
-                                               jobject obj,
-                                               const jstring account_name);
-  // Triggers a notification to all observers of the OAuth2TokenService that all
-  // refresh tokens have now been loaded.
-  virtual void FireRefreshTokensLoadedFromJava(JNIEnv* env, jobject obj);
-
-  // Overridden from OAuth2TokenService to complete signout of all
-  // OA2TService aware accounts.
-  void RevokeAllCredentials() override;
-
- protected:
-  friend class ProfileOAuth2TokenServiceFactory;
-  AndroidProfileOAuth2TokenService();
-  ~AndroidProfileOAuth2TokenService() override;
-
-  OAuth2AccessTokenFetcher* CreateAccessTokenFetcher(
-      const std::string& account_id,
-      net::URLRequestContextGetter* getter,
-      OAuth2AccessTokenConsumer* consumer) override;
-
-  // Overridden from OAuth2TokenService to intercept token fetch requests and
-  // redirect them to the Account Manager.
-  void InvalidateOAuth2Token(const std::string& account_id,
-                             const std::string& client_id,
-                             const ScopeSet& scopes,
-                             const std::string& access_token) override;
-
-  // Called to notify observers when a refresh token is available.
-  void FireRefreshTokenAvailable(const std::string& account_id) override;
-  // Called to notify observers when a refresh token has been revoked.
-  void FireRefreshTokenRevoked(const std::string& account_id) override;
-  // Called to notify observers when refresh tokans have been loaded.
-  void FireRefreshTokensLoaded() override;
-
- private:
-  // Return whether |signed_in_account| is valid and we have access
-  // to all the tokens in |curr_account_ids|. If |force_notifications| is true,
-  // TokenAvailable notifications will be sent anyway, even if the account was
-  // already known.
-  bool ValidateAccounts(const std::string& signed_in_account,
-                        const std::vector<std::string>& prev_account_ids,
-                        const std::vector<std::string>& curr_account_ids,
-                        std::vector<std::string>& refreshed_ids,
-                        std::vector<std::string>& revoked_ids,
-                        bool force_notifications);
-
-  base::android::ScopedJavaGlobalRef<jobject> java_ref_;
-
-  static bool is_testing_profile_;
-
-  DISALLOW_COPY_AND_ASSIGN(AndroidProfileOAuth2TokenService);
-};
-
-#endif  // CHROME_BROWSER_SIGNIN_ANDROID_PROFILE_OAUTH2_TOKEN_SERVICE_H_