Move browser-specific FileAPI code from webkit/fileapi to webkit/browser/fileapi

webkit/fileapi/async_file_util.h

Index: webkit/fileapi/async_file_util.h
diff --git a/webkit/fileapi/async_file_util.h b/webkit/fileapi/async_file_util.h
deleted file mode 100644
index 1c4a5cefa1b6a581c4b7cba02056723d409c91cd..0000000000000000000000000000000000000000
--- a/webkit/fileapi/async_file_util.h
+++ /dev/null
@@ -1,338 +0,0 @@
-// Copyright (c) 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 WEBKIT_FILEAPI_ASYNC_FILE_UTIL_H_
-#define WEBKIT_FILEAPI_ASYNC_FILE_UTIL_H_
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/files/file_util_proxy.h"
-#include "base/platform_file.h"
-#include "webkit/fileapi/directory_entry.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace base {
-class Time;
-}
-
-namespace webkit_blob {
-class ShareableFileReference;
-}
-
-namespace fileapi {
-
-class FileSystemOperationContext;
-class FileSystemURL;
-
-// An interface which provides filesystem-specific file operations for
-// LocalFileSystemOperation.
-//
-// Each filesystem which needs to be dispatched from LocalFileSystemOperation
-// must implement this interface or a synchronous version of interface:
-// FileSystemFileUtil.
-//
-class WEBKIT_STORAGE_EXPORT AsyncFileUtil {
- public:
-  typedef base::Callback<
-      void(base::PlatformFileError result)> StatusCallback;
-
-  typedef base::FileUtilProxy::CreateOrOpenCallback CreateOrOpenCallback;
-
-  typedef base::Callback<
-      void(base::PlatformFileError result,
-           bool created)> EnsureFileExistsCallback;
-
-  typedef base::Callback<
-      void(base::PlatformFileError result,
-           const base::PlatformFileInfo& file_info,
-           const base::FilePath& platform_path)> GetFileInfoCallback;
-
-  typedef std::vector<DirectoryEntry> EntryList;
-  typedef base::Callback<
-      void(base::PlatformFileError result,
-           const EntryList& file_list,
-           bool has_more)> ReadDirectoryCallback;
-
-  typedef base::Callback<
-      void(base::PlatformFileError result,
-           const base::PlatformFileInfo& file_info,
-           const base::FilePath& platform_path,
-           const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref
-           )> CreateSnapshotFileCallback;
-
-  AsyncFileUtil() {}
-  virtual ~AsyncFileUtil() {}
-
-  // Creates or opens a file with the given flags.
-  // If PLATFORM_FILE_CREATE is set in |file_flags| it always tries to create
-  // a new file at the given |url| and calls back with
-  // PLATFORM_FILE_ERROR_FILE_EXISTS if the |url| already exists.
-  //
-  // LocalFileSystemOperation::OpenFile calls this.
-  // This is used only by Pepper/NaCL File API.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  virtual bool CreateOrOpen(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      int file_flags,
-      const CreateOrOpenCallback& callback) = 0;
-
-  // Ensures that the given |url| exist.  This creates a empty new file
-  // at |url| if the |url| does not exist.
-  //
-  // LocalFileSystemOperation::CreateFile calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_OK and created==true if a file has not existed and
-  //   is created at |url|.
-  // - PLATFORM_FILE_OK and created==false if the file already exists.
-  // - Other error code (with created=false) if a file hasn't existed yet
-  //   and there was an error while creating a new file.
-  //
-  virtual bool EnsureFileExists(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const EnsureFileExistsCallback& callback) = 0;
-
-  // Creates directory at given url.
-  //
-  // LocalFileSystemOperation::CreateDirectory calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if the |url|'s parent directory
-  //   does not exist and |recursive| is false.
-  // - PLATFORM_FILE_ERROR_EXISTS if a directory already exists at |url|
-  //   and |exclusive| is true.
-  // - PLATFORM_FILE_ERROR_EXISTS if a file already exists at |url|
-  //   (regardless of |exclusive| value).
-  // - Other error code if it failed to create a directory.
-  //
-  virtual bool CreateDirectory(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      bool exclusive,
-      bool recursive,
-      const StatusCallback& callback) = 0;
-
-  // Retrieves the information about a file.
-  //
-  // LocalFileSystemOperation::GetMetadata calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if the file doesn't exist.
-  // - Other error code if there was an error while retrieving the file info.
-  //
-  virtual bool GetFileInfo(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const GetFileInfoCallback& callback) = 0;
-
-  // Reads contents of a directory at |path|.
-  //
-  // LocalFileSystemOperation::ReadDirectory calls this.
-  //
-  // Note that the |name| field of each entry in |file_list|
-  // returned by |callback| should have a base file name
-  // of the entry relative to the directory, but not an absolute path.
-  //
-  // (E.g. if ReadDirectory is called for a directory
-  // 'path/to/dir' and the directory has entries 'a' and 'b',
-  // the returned |file_list| should include entries whose names
-  // are 'a' and 'b', but not '/path/to/dir/a' and '/path/to/dir/b'.)
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if the target directory doesn't exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_DIRECTORY if an entry exists at |url| but
-  //   is a file (not a directory).
-  //
-  virtual bool ReadDirectory(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const ReadDirectoryCallback& callback) = 0;
-
-  // Modifies timestamps of a file or directory at |url| with
-  // |last_access_time| and |last_modified_time|. The function DOES NOT
-  // create a file unlike 'touch' command on Linux.
-  //
-  // LocalFileSystemOperation::TouchFile calls this.
-  // This is used only by Pepper/NaCL File API.
-  //
-  // This returns false if it fails to post an async task.
-  virtual bool Touch(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const base::Time& last_access_time,
-      const base::Time& last_modified_time,
-      const StatusCallback& callback) = 0;
-
-  // Truncates a file at |path| to |length|. If |length| is larger than
-  // the original file size, the file will be extended, and the extended
-  // part is filled with null bytes.
-  //
-  // LocalFileSystemOperation::Truncate calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if the file doesn't exist.
-  //
-  virtual bool Truncate(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      int64 length,
-      const StatusCallback& callback) = 0;
-
-  // Copies a file from |src_url| to |dest_url|.
-  // This must be called for files that belong to the same filesystem
-  // (i.e. type() and origin() of the |src_url| and |dest_url| must match).
-  //
-  // LocalFileSystemOperation::Copy calls this for same-filesystem copy case.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |src_url|
-  //   or the parent directory of |dest_url| does not exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_FILE if |src_url| exists but is not a file.
-  // - PLATFORM_FILE_ERROR_INVALID_OPERATION if |dest_url| exists and
-  //   is not a file.
-  // - PLATFORM_FILE_ERROR_FAILED if |dest_url| does not exist and
-  //   its parent path is a file.
-  //
-  virtual bool CopyFileLocal(
-      FileSystemOperationContext* context,
-      const FileSystemURL& src_url,
-      const FileSystemURL& dest_url,
-      const StatusCallback& callback) = 0;
-
-  // Moves a local file from |src_url| to |dest_url|.
-  // This must be called for files that belong to the same filesystem
-  // (i.e. type() and origin() of the |src_url| and |dest_url| must match).
-  //
-  // LocalFileSystemOperation::Move calls this for same-filesystem move case.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |src_url|
-  //   or the parent directory of |dest_url| does not exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_FILE if |src_url| exists but is not a file.
-  // - PLATFORM_FILE_ERROR_INVALID_OPERATION if |dest_url| exists and
-  //   is not a file.
-  // - PLATFORM_FILE_ERROR_FAILED if |dest_url| does not exist and
-  //   its parent path is a file.
-  //
-  virtual bool MoveFileLocal(
-      FileSystemOperationContext* context,
-      const FileSystemURL& src_url,
-      const FileSystemURL& dest_url,
-      const StatusCallback& callback) = 0;
-
-  // Copies in a single file from a different filesystem.
-  //
-  // LocalFileSystemOperation::Copy or Move calls this for cross-filesystem
-  // cases.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |src_file_path|
-  //   or the parent directory of |dest_url| does not exist.
-  // - PLATFORM_FILE_ERROR_INVALID_OPERATION if |dest_url| exists and
-  //   is not a file.
-  // - PLATFORM_FILE_ERROR_FAILED if |dest_url| does not exist and
-  //   its parent path is a file.
-  //
-  virtual bool CopyInForeignFile(
-        FileSystemOperationContext* context,
-        const base::FilePath& src_file_path,
-        const FileSystemURL& dest_url,
-        const StatusCallback& callback) = 0;
-
-  // Deletes a single file.
-  //
-  // LocalFileSystemOperation::RemoveFile calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |url| does not exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_FILE if |url| is not a file.
-  //
-  virtual bool DeleteFile(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const StatusCallback& callback) = 0;
-
-  // Removes a single empty directory.
-  //
-  // LocalFileSystemOperation::RemoveDirectory calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |url| does not exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_DIRECTORY if |url| is not a directory.
-  // - PLATFORM_FILE_ERROR_NOT_EMPTY if |url| is not empty.
-  //
-  virtual bool DeleteDirectory(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const StatusCallback& callback) = 0;
-
-  // Creates a local snapshot file for a given |url| and returns the
-  // metadata and platform path of the snapshot file via |callback|.
-  // In regular filesystem cases the implementation may simply return
-  // the metadata of the file itself (as well as GetMetadata does),
-  // while in non-regular filesystem case the backend may create a
-  // temporary snapshot file which holds the file data and return
-  // the metadata of the temporary file.
-  //
-  // In the callback, it returns:
-  // |file_info| is the metadata of the snapshot file created.
-  // |platform_path| is the full absolute platform path to the snapshot
-  // file created.  If a file is not backed by a real local file in
-  // the implementor's FileSystem, the implementor must create a
-  // local snapshot file and return the path of the created file.
-  //
-  // If implementors creates a temporary file for snapshotting and wants
-  // FileAPI backend to take care of the lifetime of the file (so that
-  // it won't get deleted while JS layer has any references to the created
-  // File/Blob object), it should return non-empty |file_ref|.
-  // Via the |file_ref| implementors can schedule a file deletion
-  // or arbitrary callbacks when the last reference of File/Blob is dropped.
-  //
-  // LocalFileSystemOperation::CreateSnapshotFile calls this.
-  //
-  // This returns false if it fails to post an async task.
-  //
-  // This reports following error code via |callback|:
-  // - PLATFORM_FILE_ERROR_NOT_FOUND if |url| does not exist.
-  // - PLATFORM_FILE_ERROR_NOT_A_FILE if |url| exists but is a directory.
-  //
-  // The field values of |file_info| are undefined (implementation
-  // dependent) in error cases, and the caller should always
-  // check the return code.
-  virtual bool CreateSnapshotFile(
-      FileSystemOperationContext* context,
-      const FileSystemURL& url,
-      const CreateSnapshotFileCallback& callback) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(AsyncFileUtil);
-};
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_FILEAPI_ASYNC_FILE_UTIL_H_