Move c/b/google_apis to google_apis/drive.

chrome/browser/google_apis/auth_service_interface.h

-// Copyright (c) 2012 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_GOOGLE_APIS_AUTH_SERVICE_INTERFACE_H_
-#define CHROME_BROWSER_GOOGLE_APIS_AUTH_SERVICE_INTERFACE_H_
-
-#include <string>
-
-#include "base/callback_forward.h"
-#include "chrome/browser/google_apis/gdata_errorcode.h"
-
-namespace google_apis {
-
-class AuthServiceObserver;
-
-// Called when fetching of access token is complete.
-typedef base::Callback<void(GDataErrorCode error,
-                            const std::string& access_token)>
-    AuthStatusCallback;
-
-// This defines an interface for the authentication service which is required
-// by authenticated requests (AuthenticatedRequestInterface).
-// All functions must be called on UI thread.
-class AuthServiceInterface {
- public:
-  virtual ~AuthServiceInterface() {}
-
-  // Adds and removes the observer.
-  virtual void AddObserver(AuthServiceObserver* observer) = 0;
-  virtual void RemoveObserver(AuthServiceObserver* observer) = 0;
-
-  // Starts fetching OAuth2 access token from the refresh token.
-  // |callback| must not be null.
-  virtual void StartAuthentication(const AuthStatusCallback& callback) = 0;
-
-  // True if an OAuth2 access token is retrieved and believed to be fresh.
-  // The access token is used to access the Drive server.
-  virtual bool HasAccessToken() const = 0;
-
-  // True if an OAuth2 refresh token is present. Its absence means that user
-  // is not properly authenticated.
-  // The refresh token is used to get the access token.
-  virtual bool HasRefreshToken() const = 0;
-
-  // Returns OAuth2 access token.
-  virtual const std::string& access_token() const = 0;
-
-  // Clears OAuth2 access token.
-  virtual void ClearAccessToken() = 0;
-
-  // Clears OAuth2 refresh token.
-  virtual void ClearRefreshToken() = 0;
-};
-
-}  // namespace google_apis
-
-#endif  // CHROME_BROWSER_GOOGLE_APIS_AUTH_SERVICE_INTERFACE_H_