drive: Merge ContentUpdatePerformer to EntryUpdatePerformer

chrome/browser/chromeos/drive/sync/content_update_performer.h

-// Copyright 2014 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_DRIVE_SYNC_CONTENT_UPDATE_PERFORMER_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_SYNC_CONTENT_UPDATE_PERFORMER_H_
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/chromeos/drive/file_errors.h"
-#include "google_apis/drive/gdata_errorcode.h"
-
-namespace base {
-class FilePath;
-class SequencedTaskRunner;
-}  // namespace base
-
-namespace google_apis {
-class ResourceEntry;
-}  // namespace google_apis
-
-namespace drive {
-
-class JobScheduler;
-class ResourceEntry;
-struct ClientContext;
-
-namespace internal {
-class FileCache;
-class ResourceMetadata;
-}  // namespace internal
-
-namespace file_system {
-
-// This class encapsulates the drive Update function.  It is responsible for
-// sending the request to the drive API, then updating the local state and
-// metadata to reflect the new state.
-class ContentUpdatePerformer {
- public:
-  ContentUpdatePerformer(base::SequencedTaskRunner* blocking_task_runner,
-                         JobScheduler* scheduler,
-                         internal::ResourceMetadata* metadata,
-                         internal::FileCache* cache);
-  ~ContentUpdatePerformer();
-
-  // Updates a file by the given |local_id| on the Drive server by
-  // uploading an updated version. Used for uploading dirty files. The file
-  // should already be present in the cache.
-  //
-  // |callback| must not be null.
-  void UpdateFileByLocalId(const std::string& local_id,
-                           const ClientContext& context,
-                           const FileOperationCallback& callback);
-
-  struct LocalState;
-
- private:
-  void UpdateFileAfterGetLocalState(const ClientContext& context,
-                                    const FileOperationCallback& callback,
-                                    const LocalState* local_state,
-                                    FileError error);
-
-  void UpdateFileAfterUpload(
-      const FileOperationCallback& callback,
-      const std::string& local_id,
-      google_apis::GDataErrorCode error,
-      scoped_ptr<google_apis::ResourceEntry> resource_entry);
-
-  scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-  JobScheduler* scheduler_;
-  internal::ResourceMetadata* metadata_;
-  internal::FileCache* cache_;
-
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate the weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<ContentUpdatePerformer> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(ContentUpdatePerformer);
-};
-
-}  // namespace file_system
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_SYNC_CONTENT_UPDATE_PERFORMER_H_