Move c/b/google_apis to google_apis/drive.

chrome/browser/google_apis/request_sender.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_REQUEST_SENDER_H_
-#define CHROME_BROWSER_GOOGLE_APIS_REQUEST_SENDER_H_
-
-#include <set>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/thread_checker.h"
-#include "chrome/browser/google_apis/gdata_errorcode.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-namespace google_apis {
-
-class AuthenticatedRequestInterface;
-class AuthServiceInterface;
-
-// Helper class that sends requests implementing
-// AuthenticatedRequestInterface and handles retries and authentication.
-class RequestSender {
- public:
-  // |auth_service| is used for fetching OAuth tokens. It'll be owned by
-  // this RequestSender.
-  //
-  // |url_request_context_getter| is the context used to perform network
-  // requests from this RequestSender.
-  //
-  // |blocking_task_runner| is used for running blocking operation, e.g.,
-  // parsing JSON response from the server.
-  //
-  // |custom_user_agent| will be used for the User-Agent header in HTTP
-  // requests issued through the request sender if the value is not empty.
-  RequestSender(AuthServiceInterface* auth_service,
-                net::URLRequestContextGetter* url_request_context_getter,
-                base::SequencedTaskRunner* blocking_task_runner,
-                const std::string& custom_user_agent);
-  ~RequestSender();
-
-  AuthServiceInterface* auth_service() { return auth_service_.get(); }
-
-  net::URLRequestContextGetter* url_request_context_getter() const {
-    return url_request_context_getter_;
-  }
-
-  base::SequencedTaskRunner* blocking_task_runner() const {
-    return blocking_task_runner_.get();
-  }
-
-  // Starts a request implementing the AuthenticatedRequestInterface
-  // interface, and makes the request retry upon authentication failures by
-  // calling back to RetryRequest. The |request| object is owned by this
-  // RequestSender. It will be deleted in RequestSender's destructor or
-  // in RequestFinished().
-  //
-  // Returns a closure to cancel the request. The closure cancels the request
-  // if it is in-flight, and does nothing if it is already terminated.
-  base::Closure StartRequestWithRetry(AuthenticatedRequestInterface* request);
-
-  // Notifies to this RequestSender that |request| has finished.
-  // TODO(kinaba): refactor the life time management and make this at private.
-  void RequestFinished(AuthenticatedRequestInterface* request);
-
- private:
-  // Called when the access token is fetched.
-  void OnAccessTokenFetched(
-      const base::WeakPtr<AuthenticatedRequestInterface>& request,
-      GDataErrorCode error,
-      const std::string& access_token);
-
-  // Clears any authentication token and retries the request, which forces
-  // an authentication token refresh.
-  void RetryRequest(AuthenticatedRequestInterface* request);
-
-  // Cancels the request. Used for implementing the returned closure of
-  // StartRequestWithRetry.
-  void CancelRequest(
-      const base::WeakPtr<AuthenticatedRequestInterface>& request);
-
-  scoped_ptr<AuthServiceInterface> auth_service_;
-  scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
-  scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-
-  std::set<AuthenticatedRequestInterface*> in_flight_requests_;
-  const std::string custom_user_agent_;
-
-  base::ThreadChecker thread_checker_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<RequestSender> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(RequestSender);
-};
-
-}  // namespace google_apis
-
-#endif  // CHROME_BROWSER_GOOGLE_APIS_REQUEST_SENDER_H_