Rename GDataFileSystem* to DriveFileSystem*

chrome/browser/chromeos/gdata/gdata_file_system.h

Index: chrome/browser/chromeos/gdata/gdata_file_system.h
diff --git a/chrome/browser/chromeos/gdata/gdata_file_system.h b/chrome/browser/chromeos/gdata/gdata_file_system.h
deleted file mode 100644
index 2e4aeaf2eb80c7318a3122d7a2f22ecfc9a4573f..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/gdata/gdata_file_system.h
+++ /dev/null
@@ -1,885 +0,0 @@
-// 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_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
-#define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_
-
-#include <map>
-#include <set>
-#include <string>
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "base/platform_file.h"
-#include "base/timer.h"
-#include "chrome/browser/api/prefs/pref_change_registrar.h"
-#include "chrome/browser/chromeos/gdata/drive_cache.h"
-#include "chrome/browser/chromeos/gdata/drive_resource_metadata.h"
-#include "chrome/browser/chromeos/gdata/gdata_errorcode.h"
-#include "chrome/browser/chromeos/gdata/gdata_file_system_interface.h"
-#include "chrome/browser/chromeos/gdata/gdata_wapi_feed_loader.h"
-#include "chrome/browser/chromeos/gdata/gdata_wapi_feed_processor.h"
-#include "content/public/browser/notification_observer.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace gdata {
-
-class DriveServiceInterface;
-class DriveWebAppsRegistryInterface;
-class GDataUploaderInterface;
-class GDataWapiFeedLoader;
-struct UploadFileInfo;
-
-// The production implementation of GDataFileSystemInterface.
-class GDataFileSystem : public GDataFileSystemInterface,
-                        public GDataWapiFeedLoader::Observer,
-                        public content::NotificationObserver {
- public:
-  GDataFileSystem(Profile* profile,
-                  DriveCache* cache,
-                  DriveServiceInterface* drive_service,
-                  GDataUploaderInterface* uploader,
-                  DriveWebAppsRegistryInterface* webapps_registry,
-                  base::SequencedTaskRunner* blocking_task_runner);
-  virtual ~GDataFileSystem();
-
-  // GDataFileSystem overrides.
-  virtual void Initialize() OVERRIDE;
-  virtual void AddObserver(
-      GDataFileSystemInterface::Observer* observer) OVERRIDE;
-  virtual void RemoveObserver(
-      GDataFileSystemInterface::Observer* observer) OVERRIDE;
-  virtual void StartUpdates() OVERRIDE;
-  virtual void StopUpdates() OVERRIDE;
-  virtual void NotifyFileSystemMounted() OVERRIDE;
-  virtual void NotifyFileSystemToBeUnmounted() OVERRIDE;
-  virtual void CheckForUpdates() OVERRIDE;
-  virtual void GetEntryInfoByResourceId(
-      const std::string& resource_id,
-      const GetEntryInfoWithFilePathCallback& callback) OVERRIDE;
-  virtual void Search(const std::string& search_query,
-                      const GURL& next_feed,
-                      const SearchCallback& callback) OVERRIDE;
-  virtual void TransferFileFromRemoteToLocal(
-      const FilePath& remote_src_file_path,
-      const FilePath& local_dest_file_path,
-      const FileOperationCallback& callback) OVERRIDE;
-  virtual void TransferFileFromLocalToRemote(
-      const FilePath& local_src_file_path,
-      const FilePath& remote_dest_file_path,
-      const FileOperationCallback& callback) OVERRIDE;
-  virtual void OpenFile(const FilePath& file_path,
-                        const OpenFileCallback& callback) OVERRIDE;
-  virtual void CloseFile(const FilePath& file_path,
-                         const FileOperationCallback& callback) OVERRIDE;
-  virtual void Copy(const FilePath& src_file_path,
-                    const FilePath& dest_file_path,
-                    const FileOperationCallback& callback) OVERRIDE;
-  virtual void Move(const FilePath& src_file_path,
-                    const FilePath& dest_file_path,
-                    const FileOperationCallback& callback) OVERRIDE;
-  virtual void Remove(const FilePath& file_path,
-                      bool is_recursive,
-                      const FileOperationCallback& callback) OVERRIDE;
-  virtual void CreateDirectory(const FilePath& directory_path,
-                               bool is_exclusive,
-                               bool is_recursive,
-                               const FileOperationCallback& callback) OVERRIDE;
-  virtual void CreateFile(const FilePath& file_path,
-                          bool is_exclusive,
-                          const FileOperationCallback& callback) OVERRIDE;
-  virtual void GetFileByPath(
-      const FilePath& file_path,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback) OVERRIDE;
-  virtual void GetFileByResourceId(
-      const std::string& resource_id,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback) OVERRIDE;
-  virtual void UpdateFileByResourceId(
-      const std::string& resource_id,
-      const FileOperationCallback& callback) OVERRIDE;
-  virtual void GetEntryInfoByPath(
-      const FilePath& file_path,
-      const GetEntryInfoCallback& callback) OVERRIDE;
-  virtual void ReadDirectoryByPath(
-      const FilePath& file_path,
-      const ReadDirectoryWithSettingCallback& callback) OVERRIDE;
-  virtual void RequestDirectoryRefresh(
-      const FilePath& file_path) OVERRIDE;
-  virtual void GetAvailableSpace(
-      const GetAvailableSpaceCallback& callback) OVERRIDE;
-  virtual void AddUploadedFile(UploadMode upload_mode,
-                               const FilePath& virtual_dir_path,
-                               scoped_ptr<DocumentEntry> entry,
-                               const FilePath& file_content_path,
-                               DriveCache::FileOperationType cache_operation,
-                               const base::Closure& callback) OVERRIDE;
-  virtual void UpdateEntryData(const std::string& resource_id,
-                               const std::string& md5,
-                               scoped_ptr<DocumentEntry> entry,
-                               const FilePath& file_content_path,
-                               const base::Closure& callback) OVERRIDE;
-
-  // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  // GDataWapiFeedLoader::Observer overrides.
-  // Used to propagate events from GDataWapiFeedLoader.
-  virtual void OnDirectoryChanged(const FilePath& directory_path) OVERRIDE;
-  virtual void OnDocumentFeedFetched(int num_accumulated_entries) OVERRIDE;
-  virtual void OnFeedFromServerLoaded() OVERRIDE;
-
-  // Used in tests to load the root feed from the cache.
-  void LoadRootFeedFromCacheForTesting();
-
-  // Used in tests to update the file system from |feed_list|.
-  // See also the comment at GDataWapiFeedLoader::UpdateFromFeed().
-  DriveFileError UpdateFromFeedForTesting(
-      const std::vector<DocumentFeed*>& feed_list,
-      int64 start_changestamp,
-      int64 root_feed_changestamp);
-
- private:
-  friend class GDataFileSystemTest;
-  FRIEND_TEST_ALL_PREFIXES(GDataFileSystemTest,
-                           FindFirstMissingParentDirectory);
-
-  // Defines possible search results of FindFirstMissingParentDirectory().
-  enum FindMissingDirectoryResult {
-    // Target directory found, it's not a directory.
-    FOUND_INVALID,
-    // Found missing directory segment while searching for given directory.
-    FOUND_MISSING,
-    // Found target directory, it already exists.
-    DIRECTORY_ALREADY_PRESENT,
-  };
-
-  // Defines set of parameters passes to intermediate callbacks during
-  // execution of CreateDirectory() method.
-  struct CreateDirectoryParams;
-
-  // Defines set of parameters passed to an intermediate callback
-  // OnGetFileCompleteForOpen, during execution of OpenFile() method.
-  struct GetFileCompleteForOpenParams;
-
-  // Defines set of parameters passed to intermediate callbacks during
-  // execution of GetFileByPath() method.
-  struct GetFileFromCacheParams;
-
-  // Struct used for StartFileUploadOnUIThread().
-  struct StartFileUploadParams;
-
-  // Struct used for AddUploadedFile.
-  struct AddUploadedFileParams;
-
-  // Callback passed to |LoadFeedFromServer| from |Search| method.
-  // |callback| is that should be run with data received from
-  // |LoadFeedFromServer|.
-  // |params| params used for getting document feed for content search.
-  // |error| error code returned by |LoadFeedFromServer|.
-  void OnSearch(const SearchCallback& callback,
-                GetDocumentsParams* params,
-                DriveFileError error);
-
-  // Part of TransferFileFromLocalToRemote(). Called after
-  // GetEntryInfoByPath() is complete.
-  void TransferFileFromLocalToRemoteAfterGetEntryInfo(
-      const FilePath& local_src_file_path,
-      const FilePath& remote_dest_file_path,
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Initiates transfer of |local_file_path| with |resource_id| to
-  // |remote_dest_file_path|. |local_file_path| must be a file from the local
-  // file system, |remote_dest_file_path| is the virtual destination path within
-  // gdata file system. If |resource_id| is a non-empty string, the transfer is
-  // handled by CopyDocumentToDirectory. Otherwise, the transfer is handled by
-  // TransferRegularFile.
-  //
-  // Must be called from *UI* thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void TransferFileForResourceId(const FilePath& local_file_path,
-                                 const FilePath& remote_dest_file_path,
-                                 const FileOperationCallback& callback,
-                                 std::string* resource_id);
-
-  // Initiates transfer of |local_file_path| to |remote_dest_file_path|.
-  // |local_file_path| must be a regular file (i.e. not a hosted document) from
-  // the local file system, |remote_dest_file_path| is the virtual destination
-  // path within gdata file system.
-  //
-  // Must be called from *UI* thread. |callback| is run on the calling thread.
-  void TransferRegularFile(const FilePath& local_file_path,
-                           const FilePath& remote_dest_file_path,
-                           const FileOperationCallback& callback);
-
-  // Invoked during the process of CreateFile.
-  // First, FindEntryByPathAsyncOnUIThread is called and the result is returned
-  // to OnGetEntryInfoForCreateFile. By using the information, CreateFile deals
-  // with the cases when an entry already existed at the path. If there was no
-  // entry, a new empty file is uploaded, and when it finishes
-  // DidUploadForCreateBrandNewFile does the final clean up.
-  // |callback| must not be null.
-  void OnGetEntryInfoForCreateFile(const FilePath& file_path,
-                                   bool is_exclusive,
-                                   const FileOperationCallback& callback,
-                                   DriveFileError result,
-                                   scoped_ptr<DriveEntryProto> entry_proto);
-  void DoUploadForCreateBrandNewFile(const FilePath& remote_path,
-                                     FilePath* local_path,
-                                     const FileOperationCallback& callback);
-  void DidUploadForCreateBrandNewFile(const FilePath& local_path,
-                                      const FileOperationCallback& callback,
-                                      DriveFileError result);
-
-  // Invoked upon completion of GetEntryInfoByPath initiated by
-  // GetFileByPath. It then continues to invoke GetResolvedFileByPath.
-  void OnGetEntryInfoCompleteForGetFileByPath(
-      const FilePath& file_path,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> file_info);
-
-  // Invoked upon completion of GetEntryInfoByPath initiated by OpenFile.
-  // It then continues to invoke GetResolvedFileByPath and proceeds to
-  // OnGetFileCompleteForOpenFile.
-  void OnGetEntryInfoCompleteForOpenFile(
-      const FilePath& file_path,
-      const OpenFileCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> file_info);
-
-  // Invoked at the last step of OpenFile. It removes |file_path| from the
-  // current set of opened files if |result| is an error, and then invokes the
-  // |callback| function.
-  void OnOpenFileFinished(const FilePath& file_path,
-                          const OpenFileCallback& callback,
-                          DriveFileError result,
-                          const FilePath& cache_file_path);
-
-  // Invoked during the process of CloseFile. What is done here is as follows:
-  // 1) Gets resource_id and md5 of the entry at |file_path|.
-  // 2) Commits the modification to the cache system.
-  // 3) Removes the |file_path| from the remembered set of opened files.
-  // 4) Invokes the user-supplied |callback|.
-  // |callback| must not be null.
-  void CloseFileOnUIThreadAfterGetEntryInfo(
-      const FilePath& file_path,
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-  void CloseFileOnUIThreadAfterCommitDirtyInCache(
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      const std::string& resource_id,
-      const std::string& md5);
-  void CloseFileOnUIThreadFinalize(const FilePath& file_path,
-                                   const FileOperationCallback& callback,
-                                   DriveFileError result);
-
-  // Invoked upon completion of GetFileByPath initiated by Copy. If
-  // GetFileByPath reports no error, calls TransferRegularFile to transfer
-  // |local_file_path| to |remote_dest_file_path|.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  void OnGetFileCompleteForCopy(const FilePath& remote_dest_file_path,
-                                const FileOperationCallback& callback,
-                                DriveFileError error,
-                                const FilePath& local_file_path,
-                                const std::string& unused_mime_type,
-                                DriveFileType file_type);
-
-  // Invoked upon completion of GetFileByPath initiated by
-  // TransferFileFromRemoteToLocal. If GetFileByPath reports no error, calls
-  // CopyLocalFileOnBlockingPool to copy |local_file_path| to
-  // |local_dest_file_path|.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void OnGetFileCompleteForTransferFile(const FilePath& local_dest_file_path,
-                                        const FileOperationCallback& callback,
-                                        DriveFileError error,
-                                        const FilePath& local_file_path,
-                                        const std::string& unused_mime_type,
-                                        DriveFileType file_type);
-
-  // Invoked upon completion of GetFileByPath initiated by OpenFile. If
-  // GetFileByPath is successful, calls MarkDirtyInCache to mark the cache
-  // file as dirty for the file identified by |file_info.resource_id| and
-  // |file_info.md5|.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  void OnGetFileCompleteForOpenFile(
-      const OpenFileCallback& callback,
-      const GetFileCompleteForOpenParams& file_info,
-      DriveFileError error,
-      const FilePath& file_path,
-      const std::string& mime_type,
-      DriveFileType file_type);
-
-  // Copies a document with |resource_id| to the directory at |dir_path|
-  // and names the copied document as |new_name|.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void CopyDocumentToDirectory(const FilePath& dir_path,
-                               const std::string& resource_id,
-                               const FilePath::StringType& new_name,
-                               const FileOperationCallback& callback);
-
-  // Renames a file or directory at |file_path| to |new_name| in the same
-  // directory. |callback| will receive the new file path if the operation is
-  // successful. If the new name already exists in the same directory, the file
-  // name is uniquified by adding a parenthesized serial number like
-  // "foo (2).txt"
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void Rename(const FilePath& file_path,
-              const FilePath::StringType& new_name,
-              const FileMoveCallback& callback);
-
-  // Part of Rename(). Called after GetEntryInfoByPath() is complete.
-  void RenameAfterGetEntryInfo(const FilePath& file_path,
-                               const FilePath::StringType& new_name,
-                               const FileMoveCallback& callback,
-                               DriveFileError error,
-                               scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Moves a file or directory at |file_path| in the root directory to
-  // another directory at |dir_path|. This function does nothing if
-  // |dir_path| points to the root directory.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void MoveEntryFromRootDirectory(const FilePath& dir_path,
-                                  const FileOperationCallback& callback,
-                                  DriveFileError error,
-                                  const FilePath& file_path);
-
-  // Part of MoveEntryFromRootDirectory(). Called after
-  // GetEntryInfoPairByPaths() is complete. |callback| must not be null.
-  void MoveEntryFromRootDirectoryAfterGetEntryInfoPair(
-    const FileOperationCallback& callback,
-    scoped_ptr<EntryInfoPairResult> result);
-
-  // Part of RemoveEntryFromNonRootDirectory(). Called after
-  // GetEntryInfoPairByPaths() is complete. |callback| must not be null.
-  void RemoveEntryFromNonRootDirectoryAfterEntryInfoPair(
-    const FileMoveCallback& callback,
-    scoped_ptr<EntryInfoPairResult> result);
-
-  // Removes a file or directory at |file_path| from the current directory if
-  // it's not in the root directory. This essentially moves an entry to the
-  // root directory on the server side.
-  //
-  // Can be called from UI thread. |callback| is run on the calling thread.
-  // |callback| must not be null.
-  void RemoveEntryFromNonRootDirectory(const FileMoveCallback& callback,
-                                       DriveFileError error,
-                                       const FilePath& file_path);
-
-  // Removes file under |file_path| on the client side.
-  // |resource_id| contains the resource id of the removed file if it was a
-  // file.
-  // Return PLATFORM_FILE_OK if successful.
-  DriveFileError RemoveEntryLocally(const FilePath& file_path,
-                                    std::string* resource_id);
-
-  // A pass-through callback used for bridging from
-  // FileMoveCallback to FileOperationCallback.
-  void OnFilePathUpdated(const FileOperationCallback& cllback,
-                         DriveFileError error,
-                         const FilePath& file_path);
-
-  // Invoked upon completion of MarkDirtyInCache initiated by OpenFile. Invokes
-  // |callback| with |cache_file_path|, which is the path of the cache file
-  // ready for modification.
-  //
-  // Must be called on UI thread.
-  void OnMarkDirtyInCacheCompleteForOpenFile(const OpenFileCallback& callback,
-                                             DriveFileError error,
-                                             const std::string& resource_id,
-                                             const std::string& md5,
-                                             const FilePath& cache_file_path);
-
-  // Callback for handling document copy attempt.
-  // |callback| must not be null.
-  void OnCopyDocumentCompleted(const FilePath& dir_path,
-                               const FileOperationCallback& callback,
-                               GDataErrorCode status,
-                               scoped_ptr<base::Value> data);
-
-  // Callback for handling an attempt to move a file or directory from the
-  // root directory to another directory on the server side. This function
-  // moves |entry| to the root directory on the client side with
-  // DriveResourceMetadata::MoveEntryToDirectory().
-  //
-  // |callback| must not be null.
-  void OnMoveEntryFromRootDirectoryCompleted(
-      const FileOperationCallback& callback,
-      const FilePath& file_path,
-      const FilePath& dir_path,
-      GDataErrorCode status,
-      const GURL& document_url);
-
-  // Callback for handling account metadata fetch.
-  void OnGetAvailableSpace(const GetAvailableSpaceCallback& callback,
-                           GDataErrorCode status,
-                           scoped_ptr<base::Value> data);
-
-  // Callback for handling Drive V2 about resource fetch.
-  void OnGetAboutResource(const GetAvailableSpaceCallback& callback,
-                          GDataErrorCode status,
-                          scoped_ptr<base::Value> data);
-
-  // Callback for handling document remove attempt.
-  void OnRemovedDocument(const FileOperationCallback& callback,
-                         const FilePath& file_path,
-                         GDataErrorCode status,
-                         const GURL& document_url);
-
-  // Callback for handling directory create requests.
-  void OnCreateDirectoryCompleted(const CreateDirectoryParams& params,
-                                  GDataErrorCode status,
-                                  scoped_ptr<base::Value> created_entry);
-
-  // Callback for handling file downloading requests.
-  void OnFileDownloaded(const GetFileFromCacheParams& params,
-                        GDataErrorCode status,
-                        const GURL& content_url,
-                        const FilePath& downloaded_file_path);
-
-  // Unpins file if cache entry is pinned.
-  void UnpinIfPinned(const std::string& resource_id,
-                     const std::string& md5,
-                     bool success,
-                     const DriveCacheEntry& cache_entry);
-
-  // Similar to OnFileDownloaded() but takes |has_enough_space| so we report
-  // an error in case we don't have enough disk space.
-  void OnFileDownloadedAndSpaceChecked(const GetFileFromCacheParams& params,
-                                       GDataErrorCode status,
-                                       const GURL& content_url,
-                                       const FilePath& downloaded_file_path,
-                                       bool* has_enough_space);
-
-  // Callback for handling internal StoreToCache() calls after downloading
-  // file content.
-  void OnDownloadStoredToCache(DriveFileError error,
-                               const std::string& resource_id,
-                               const std::string& md5);
-
-  // Callback for handling resource rename attempt. Renames a file or
-  // directory at |file_path| on the client side.
-  // |callback| must not be null.
-  void RenameEntryLocally(const FilePath& file_path,
-                          const FilePath::StringType& new_name,
-                          const FileMoveCallback& callback,
-                          GDataErrorCode status,
-                          const GURL& document_url);
-
-  // Callback for handling an attempt to remove a file or directory from
-  // another directory. Moves a file or directory at |file_path| to root on
-  // the client side.
-  // |callback| must not be null.
-  void MoveEntryToRootDirectoryLocally(const FileMoveCallback& callback,
-                                       const FilePath& file_path,
-                                       const FilePath& dir_path,
-                                       GDataErrorCode status,
-                                       const GURL& document_url);
-
-  // Removes a file or directory under |file_path| on the client side and the
-  // corresponding file from cache if it exists.  Returns PLATFORM_FILE_OK if
-  // successful.
-  DriveFileError RemoveEntryAndCacheLocally(const FilePath& file_path);
-
-  // Callback when an entry is moved to another directory on the client side.
-  // Notifies the directory change and runs |callback|.
-  // |callback| may be null.
-  void NotifyAndRunFileMoveCallback(
-      const FileMoveCallback& callback,
-      DriveFileError error,
-      const FilePath& moved_file_path);
-
-  // Callback when an entry is moved to another directory on the client side.
-  // Notifies the directory change and runs |callback|.
-  // |callback| must not be null.
-  void NotifyAndRunFileOperationCallback(
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      const FilePath& moved_file_path);
-
-  // FileMoveCallback for directory changes.
-  void OnDirectoryChangeFileMoveCallback(
-      DriveFileError error,
-      const FilePath& directory_path);
-
-  // Callback for GetEntryByResourceIdAsync.
-  // Removes stale entry upon upload of file.
-  void RemoveStaleEntryOnUpload(const std::string& resource_id,
-                                DriveDirectory* parent_dir,
-                                const FileMoveCallback& callback,
-                                DriveEntry* existing_entry);
-
-  // Continues to add an uploaded file after existing entry has been deleted.
-  void ContinueAddUploadedFile(AddUploadedFileParams* params,
-                               DriveFileError error,
-                               const FilePath& file_path);
-
-  // Adds the uploaded file to the cache.
-  void AddUploadedFileToCache(AddUploadedFileParams* params,
-                              DriveFileError error,
-                              const FilePath& file_path);
-
-  // Converts |entry_value| into GFileDocument instance and adds it
-  // to virtual file system at |directory_path|.
-  DriveFileError AddNewDirectory(const FilePath& directory_path,
-                                 base::Value* entry_value);
-
-  // Given non-existing |directory_path|, finds the first missing parent
-  // directory of |directory_path|.
-  FindMissingDirectoryResult FindFirstMissingParentDirectory(
-      const FilePath& directory_path,
-      GURL* last_dir_content_url,
-      FilePath* first_missing_parent_path);
-
-  // Callback for handling results of ReloadFeedFromServerIfNeeded() initiated
-  // from CheckForUpdates(). This callback checks whether feed is successfully
-  // reloaded, and in case of failure, restores the content origin of the root
-  // directory.
-  void OnUpdateChecked(ContentOrigin initial_origin,
-                       DriveFileError error);
-
-  // Notifies that the initial load is finished and runs |callback|.
-  // |callback| must not be null.
-  void NotifyInitialLoadFinishedAndRun(const FileOperationCallback& callback,
-                                       DriveFileError error);
-
-  // Helper function that completes bookkeeping tasks related to
-  // completed file transfer.
-  void OnTransferCompleted(const FileOperationCallback& callback,
-                           DriveFileError error,
-                           scoped_ptr<UploadFileInfo> upload_file_info);
-
-  // Kicks off file upload once it receives |file_size| and |content_type|.
-  void StartFileUploadOnUIThread(const StartFileUploadParams& params,
-                                 DriveFileError* error,
-                                 int64* file_size,
-                                 std::string* content_type);
-
-  // Part of StartFileUploadOnUIThread(). Called after GetEntryInfoByPath()
-  // is complete.
-  void StartFileUploadOnUIThreadAfterGetEntryInfo(
-      const StartFileUploadParams& params,
-      int64 file_size,
-      std::string content_type,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Cache intermediate callbacks, that run on calling thread, for above cache
-  // tasks that were run on blocking pool.
-
-  // Helper function for internally handling responses from
-  // GetFileFromCacheByResourceIdAndMd5() calls during processing of
-  // GetFileByPath() request.
-  void OnGetFileFromCache(const GetFileFromCacheParams& params,
-                          DriveFileError error,
-                          const std::string& resource_id,
-                          const std::string& md5,
-                          const FilePath& cache_file_path);
-
-  // Callback for |drive_service_->GetDocumentEntry|.
-  // It is called before file download. If GetDocumentEntry was successful,
-  // file download procedure is started for the file. The file is downloaded
-  // from the content url extracted from the fetched metadata to
-  // |cache_file_path|. Also, available space checks are done using file size
-  // from the fetched metadata.
-  void OnGetDocumentEntry(const FilePath& cache_file_path,
-                          const GetFileFromCacheParams& params,
-                          GDataErrorCode status,
-                          scoped_ptr<base::Value> data);
-
-  // Starts downloading a file if we have enough disk space indicated by
-  // |has_enough_space|.
-  void StartDownloadFileIfEnoughSpace(const GetFileFromCacheParams& params,
-                                      const GURL& content_url,
-                                      const FilePath& cache_file_path,
-                                      bool* has_enough_space);
-
-  // Changes state of hosted documents visibility, triggers directory refresh.
-  void SetHideHostedDocuments(bool hide);
-
-  // Initializes preference change observer.
-  void InitializePreferenceObserver();
-
-  // Part of GetEntryInfoByPathOnUIThread()
-  // 1) Called when the feed is loaded.
-  // 2) Called when an entry is found.
-  // |callback| must not be null.
-  void GetEntryInfoByPathOnUIThreadAfterLoad(
-      const FilePath& file_path,
-      const GetEntryInfoCallback& callback,
-      DriveFileError error);
-  void GetEntryInfoByPathOnUIThreadAfterGetEntry(
-      const GetEntryInfoCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Part of ReadDirectoryByPathOnUIThread()
-  // 1) Called when the feed is loaded.
-  // 2) Called when an entry is found.
-  // |callback| must not be null.
-  void ReadDirectoryByPathOnUIThreadAfterLoad(
-      const FilePath& file_path,
-      const ReadDirectoryWithSettingCallback& callback,
-      DriveFileError error);
-  void ReadDirectoryByPathOnUIThreadAfterRead(
-      const ReadDirectoryWithSettingCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProtoVector> entries);
-
-  // Loads the feed from the cache or the server if not yet loaded. Runs
-  // |callback| upon the completion with the error code.
-  // |callback| must not be null.
-  void LoadFeedIfNeeded(const FileOperationCallback& callback);
-
-  // Gets |file_path| from the file system after the file info is already
-  // resolved with GetEntryInfoByPath(). This function is called by
-  // OnGetEntryInfoCompleteForGetFileByPath and
-  // OnGetEntryInfoCompleteForOpenFile.
-  void GetResolvedFileByPath(
-      const FilePath& file_path,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback,
-      DriveFileError error,
-      const DriveEntryProto* entry_proto);
-
-  // Part of UpdateFileByResourceId(). Called when
-  // DriveDirectory::GetEntryInfoByResourceId() is complete.
-  // |callback| must not be null.
-  void UpdateFileByEntryInfo(
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      const FilePath& /* drive_file_path */,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Part of UpdateFileByResourceId().
-  // Called when DriveCache::GetFileOnUIThread() is completed for
-  // UpdateFileByResourceId().
-  // |callback| must not be null.
-  void OnGetFileCompleteForUpdateFile(const FileOperationCallback& callback,
-                                      DriveFileError error,
-                                      const std::string& resource_id,
-                                      const std::string& md5,
-                                      const FilePath& cache_file_path);
-
-  // Part of UpdateFileByResourceId().
-  // Callback for getting the size of the cache file in the blocking pool.
-  // |callback| must not be null.
-  void OnGetFileSizeCompleteForUpdateFile(const FileOperationCallback& callback,
-                                          const std::string& resource_id,
-                                          const FilePath& cache_file_path,
-                                          DriveFileError* error,
-                                          int64* file_size);
-
-  // Part of UpdateFileByResourceId().
-  // Callback for GDataRootDirectory::GetEntryByResourceIdAsync.
-  // |callback| must not be null.
-  void OnGetFileCompleteForUpdateFileByEntry(
-      const FileOperationCallback& callback,
-      int64 file_size,
-      const FilePath& cache_file_path,
-      DriveFileError error,
-      const FilePath& drive_file_path,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Part of UpdateFileByResourceId().
-  // Called when GDataUploader::UploadUpdatedFile() is completed for
-  // UpdateFileByResourceId().
-  // |callback| must not be null.
-  void OnUpdatedFileUploaded(const FileOperationCallback& callback,
-                             DriveFileError error,
-                             scoped_ptr<UploadFileInfo> upload_file_info);
-
-  // The following functions are used to forward calls to asynchronous public
-  // member functions to UI thread.
-  void SearchAsyncOnUIThread(const std::string& search_query,
-                             const GURL& next_feed,
-                             const SearchCallback& callback);
-  void OpenFileOnUIThread(const FilePath& file_path,
-                          const OpenFileCallback& callback);
-  void CloseFileOnUIThread(const FilePath& file_path,
-                           const FileOperationCallback& callback);
-  void CopyOnUIThread(const FilePath& src_file_path,
-                      const FilePath& dest_file_path,
-                      const FileOperationCallback& callback);
-  void MoveOnUIThread(const FilePath& src_file_path,
-                      const FilePath& dest_file_path,
-                      const FileOperationCallback& callback);
-  void RemoveOnUIThread(const FilePath& file_path,
-                        bool is_recursive,
-                        const FileOperationCallback& callback);
-  void CreateDirectoryOnUIThread(const FilePath& directory_path,
-                                 bool is_exclusive,
-                                 bool is_recursive,
-                                 const FileOperationCallback& callback);
-  void CreateFileOnUIThread(const FilePath& file_path,
-                            bool is_exclusive,
-                            const FileOperationCallback& callback);
-  void GetFileByPathOnUIThread(
-      const FilePath& file_path,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback);
-  void GetFileByResourceIdOnUIThread(
-      const std::string& resource_id,
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback);
-  void GetFileByEntryOnUIThread(
-      const GetFileCallback& get_file_callback,
-      const GetContentCallback& get_content_callback,
-      DriveEntry* entry);
-  void GetEntryInfoByEntryOnUIThread(
-      const GetEntryInfoWithFilePathCallback& callback,
-      DriveEntry* entry);
-  void UpdateFileByResourceIdOnUIThread(const std::string& resource_id,
-                                        const FileOperationCallback& callback);
-  void GetEntryInfoByPathOnUIThread(const FilePath& file_path,
-                                    const GetEntryInfoCallback& callback);
-  void GetEntryInfoByResourceIdOnUIThread(
-      const std::string& resource_id,
-      const GetEntryInfoWithFilePathCallback& callback);
-  void ReadDirectoryByPathOnUIThread(
-      const FilePath& file_path,
-      const ReadDirectoryWithSettingCallback& callback);
-  void RequestDirectoryRefreshOnUIThread(const FilePath& file_path);
-  void OnRequestDirectoryRefresh(const FilePath& directory_path,
-                                 GetDocumentsParams* params,
-                                 DriveFileError error);
-  void GetAvailableSpaceOnUIThread(const GetAvailableSpaceCallback& callback);
-  void AddUploadedFileOnUIThread(UploadMode upload_mode,
-                                 const FilePath& virtual_dir_path,
-                                 scoped_ptr<DocumentEntry> entry,
-                                 const FilePath& file_content_path,
-                                 DriveCache::FileOperationType cache_operation,
-                                 const base::Closure& callback);
-  void UpdateEntryDataOnUIThread(const std::string& resource_id,
-                                 const std::string& md5,
-                                 scoped_ptr<DocumentEntry> entry,
-                                 const FilePath& file_content_path,
-                                 const base::Closure& callback);
-
-  // Part of CopyOnUIThread(). Called after GetEntryInfoPairByPaths() is
-  // complete. |callback| must not be null.
-  void CopyOnUIThreadAfterGetEntryInfoPair(
-    const FilePath& dest_file_path,
-    const FileOperationCallback& callback,
-    scoped_ptr<EntryInfoPairResult> result);
-
-  // Part of MoveOnUIThread(). Called after GetEntryInfoPairByPaths() is
-  // complete. |callback| must not be null.
-  void MoveOnUIThreadAfterGetEntryInfoPair(
-    const FilePath& dest_file_path,
-    const FileOperationCallback& callback,
-    scoped_ptr<EntryInfoPairResult> result);
-
-  // Part of RemoveOnUIThread(). Called after GetEntryInfoByPath() is
-  // complete.
-  void RemoveOnUIThreadAfterGetEntryInfo(
-      const FilePath& file_path,
-      bool is_recursive,
-      const FileOperationCallback& callback,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Part of RequestDirectoryRefreshOnUIThread(). Called after
-  // GetEntryInfoByPath() is complete.
-  void RequestDirectoryRefreshOnUIThreadAfterGetEntryInfo(
-      const FilePath& file_path,
-      DriveFileError error,
-      scoped_ptr<DriveEntryProto> entry_proto);
-
-  // Part of GetEntryByResourceId and GetEntryByPath. Checks whether there is a
-  // local dirty cache for the entry, and if there is, replace the
-  // PlatformFileInfo part of the |entry_proto| with the locally modified info.
-  // |callback| must not be null.
-  void CheckLocalModificationAndRun(scoped_ptr<DriveEntryProto> entry_proto,
-                                    const GetEntryInfoCallback& callback);
-  void CheckLocalModificationAndRunAfterGetCacheEntry(
-      scoped_ptr<DriveEntryProto> entry_proto,
-      const GetEntryInfoCallback& callback,
-      bool success,
-      const DriveCacheEntry& cache_entry);
-  void CheckLocalModificationAndRunAfterGetCacheFile(
-      scoped_ptr<DriveEntryProto> entry_proto,
-      const GetEntryInfoCallback& callback,
-      DriveFileError error,
-      const std::string& resource_id,
-      const std::string& md5,
-      const FilePath& local_cache_path);
-  void CheckLocalModificationAndRunAfterGetFileInfo(
-      scoped_ptr<DriveEntryProto> entry_proto,
-      const GetEntryInfoCallback& callback,
-      base::PlatformFileInfo* file_info,
-      bool* get_file_info_result);
-
-  // All members should be accessed only on UI thread. Do not post tasks to
-  // other threads with base::Unretained(this).
-  scoped_ptr<DriveResourceMetadata> resource_metadata_;
-
-  // The profile hosts the GDataFileSystem via GDataSystemService.
-  Profile* profile_;
-
-  // The cache owned by GDataSystemService.
-  DriveCache* cache_;
-
-  // The uploader owned by GDataSystemService.
-  GDataUploaderInterface* uploader_;
-
-  // The document service owned by GDataSystemService.
-  DriveServiceInterface* drive_service_;
-
-  // The webapps registry owned by GDataSystemService.
-  DriveWebAppsRegistryInterface* webapps_registry_;
-
-  // Periodic timer for checking updates.
-  base::Timer update_timer_;
-
-  // True if hosted documents should be hidden.
-  bool hide_hosted_docs_;
-
-  // The set of paths opened by OpenFile but not yet closed by CloseFile.
-  std::set<FilePath> open_files_;
-
-  scoped_ptr<PrefChangeRegistrar> pref_registrar_;
-
-  // The loader is used to load the feeds.
-  scoped_ptr<GDataWapiFeedLoader> feed_loader_;
-
-  ObserverList<GDataFileSystemInterface::Observer> observers_;
-
-  scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-
-  // WeakPtrFactory and WeakPtr bound to the UI thread.
-  // Note: These should remain the last member so they'll be destroyed and
-  // invalidate the weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<GDataFileSystem> ui_weak_ptr_factory_;
-  // Unlike other classes, we need this as we need this to redirect a task
-  // from IO thread to UI thread.
-  base::WeakPtr<GDataFileSystem> ui_weak_ptr_;
-};
-
-}  // namespace gdata
-
-#endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_H_