Migrate webkit/browser/ to storage/browser/

webkit/browser/fileapi/native_file_util.cc

Index: webkit/browser/fileapi/native_file_util.cc
diff --git a/webkit/browser/fileapi/native_file_util.cc b/webkit/browser/fileapi/native_file_util.cc
deleted file mode 100644
index 2fa3ef9cde79ec5e69bad8c5dd85354d895a627e..0000000000000000000000000000000000000000
--- a/webkit/browser/fileapi/native_file_util.cc
+++ /dev/null
@@ -1,315 +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.
-
-#include "webkit/browser/fileapi/native_file_util.h"
-
-#include "base/file_util.h"
-#include "base/files/file.h"
-#include "base/files/file_enumerator.h"
-#include "base/memory/scoped_ptr.h"
-#include "webkit/browser/fileapi/file_system_operation_context.h"
-#include "webkit/browser/fileapi/file_system_url.h"
-
-namespace storage {
-
-namespace {
-
-// Sets permissions on directory at |dir_path| based on the target platform.
-// Returns true on success, or false otherwise.
-//
-// TODO(benchan): Find a better place outside webkit to host this function.
-bool SetPlatformSpecificDirectoryPermissions(const base::FilePath& dir_path) {
-#if defined(OS_CHROMEOS)
-    // System daemons on Chrome OS may run as a user different than the Chrome
-    // process but need to access files under the directories created here.
-    // Because of that, grant the execute permission on the created directory
-    // to group and other users.
-    if (HANDLE_EINTR(chmod(dir_path.value().c_str(),
-                           S_IRWXU | S_IXGRP | S_IXOTH)) != 0) {
-      return false;
-    }
-#endif
-    // Keep the directory permissions unchanged on non-Chrome OS platforms.
-    return true;
-}
-
-// Copies a file |from| to |to|, and ensure the written content is synced to
-// the disk. This is essentially base::CopyFile followed by fsync().
-bool CopyFileAndSync(const base::FilePath& from, const base::FilePath& to) {
-  base::File infile(from, base::File::FLAG_OPEN | base::File::FLAG_READ);
-  if (!infile.IsValid()) {
-    return false;
-  }
-
-  base::File outfile(to,
-                     base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE);
-  if (!outfile.IsValid()) {
-    return false;
-  }
-
-  const int kBufferSize = 32768;
-  std::vector<char> buffer(kBufferSize);
-
-  for (;;) {
-    int bytes_read = infile.ReadAtCurrentPos(&buffer[0], kBufferSize);
-    if (bytes_read < 0)
-      return false;
-    if (bytes_read == 0)
-      break;
-    for (int bytes_written = 0; bytes_written < bytes_read; ) {
-      int bytes_written_partial = outfile.WriteAtCurrentPos(
-          &buffer[bytes_written], bytes_read - bytes_written);
-      if (bytes_written_partial < 0)
-        return false;
-      bytes_written += bytes_written_partial;
-    }
-  }
-
-  return outfile.Flush();
-}
-
-}  // namespace
-
-using base::PlatformFile;
-
-class NativeFileEnumerator : public FileSystemFileUtil::AbstractFileEnumerator {
- public:
-  NativeFileEnumerator(const base::FilePath& root_path,
-                       bool recursive,
-                       int file_type)
-    : file_enum_(root_path, recursive, file_type) {
-  }
-
-  virtual ~NativeFileEnumerator() {}
-
-  virtual base::FilePath Next() OVERRIDE;
-  virtual int64 Size() OVERRIDE;
-  virtual base::Time LastModifiedTime() OVERRIDE;
-  virtual bool IsDirectory() OVERRIDE;
-
- private:
-  base::FileEnumerator file_enum_;
-  base::FileEnumerator::FileInfo file_util_info_;
-};
-
-base::FilePath NativeFileEnumerator::Next() {
-  base::FilePath rv = file_enum_.Next();
-  if (!rv.empty())
-    file_util_info_ = file_enum_.GetInfo();
-  return rv;
-}
-
-int64 NativeFileEnumerator::Size() {
-  return file_util_info_.GetSize();
-}
-
-base::Time NativeFileEnumerator::LastModifiedTime() {
-  return file_util_info_.GetLastModifiedTime();
-}
-
-bool NativeFileEnumerator::IsDirectory() {
-  return file_util_info_.IsDirectory();
-}
-
-NativeFileUtil::CopyOrMoveMode NativeFileUtil::CopyOrMoveModeForDestination(
-    const FileSystemURL& dest_url, bool copy) {
-  if (copy) {
-    return dest_url.mount_option().copy_sync_option() == COPY_SYNC_OPTION_SYNC ?
-        COPY_SYNC : COPY_NOSYNC;
-  }
-  return MOVE;
-}
-
-base::File NativeFileUtil::CreateOrOpen(const base::FilePath& path,
-                                        int file_flags) {
-  if (!base::DirectoryExists(path.DirName())) {
-    // If its parent does not exist, should return NOT_FOUND error.
-    return base::File(base::File::FILE_ERROR_NOT_FOUND);
-  }
-
-  // TODO(rvargas): Check |file_flags| instead. See bug 356358.
-  if (base::DirectoryExists(path))
-    return base::File(base::File::FILE_ERROR_NOT_A_FILE);
-
-  return base::File(path, file_flags);
-}
-
-base::File::Error NativeFileUtil::EnsureFileExists(
-    const base::FilePath& path,
-    bool* created) {
-  if (!base::DirectoryExists(path.DirName()))
-    // If its parent does not exist, should return NOT_FOUND error.
-    return base::File::FILE_ERROR_NOT_FOUND;
-
-  // Tries to create the |path| exclusively.  This should fail
-  // with base::File::FILE_ERROR_EXISTS if the path already exists.
-  base::File file(path, base::File::FLAG_CREATE | base::File::FLAG_READ);
-
-  if (file.IsValid()) {
-    if (created)
-      *created = file.created();
-    return base::File::FILE_OK;
-  }
-
-  base::File::Error error_code = file.error_details();
-  if (error_code == base::File::FILE_ERROR_EXISTS) {
-    // Make sure created_ is false.
-    if (created)
-      *created = false;
-    error_code = base::File::FILE_OK;
-  }
-  return error_code;
-}
-
-base::File::Error NativeFileUtil::CreateDirectory(
-    const base::FilePath& path,
-    bool exclusive,
-    bool recursive) {
-  // If parent dir of file doesn't exist.
-  if (!recursive && !base::PathExists(path.DirName()))
-    return base::File::FILE_ERROR_NOT_FOUND;
-
-  bool path_exists = base::PathExists(path);
-  if (exclusive && path_exists)
-    return base::File::FILE_ERROR_EXISTS;
-
-  // If file exists at the path.
-  if (path_exists && !base::DirectoryExists(path))
-    return base::File::FILE_ERROR_EXISTS;
-
-  if (!base::CreateDirectory(path))
-    return base::File::FILE_ERROR_FAILED;
-
-  if (!SetPlatformSpecificDirectoryPermissions(path)) {
-    // Since some file systems don't support permission setting, we do not treat
-    // an error from the function as the failure of copying. Just log it.
-    LOG(WARNING) << "Setting directory permission failed: "
-        << path.AsUTF8Unsafe();
-  }
-
-  return base::File::FILE_OK;
-}
-
-base::File::Error NativeFileUtil::GetFileInfo(
-    const base::FilePath& path,
-    base::File::Info* file_info) {
-  if (!base::PathExists(path))
-    return base::File::FILE_ERROR_NOT_FOUND;
-
-  if (!base::GetFileInfo(path, file_info))
-    return base::File::FILE_ERROR_FAILED;
-  return base::File::FILE_OK;
-}
-
-scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator>
-    NativeFileUtil::CreateFileEnumerator(const base::FilePath& root_path,
-                                         bool recursive) {
-  return make_scoped_ptr(new NativeFileEnumerator(
-      root_path, recursive,
-      base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES))
-      .PassAs<FileSystemFileUtil::AbstractFileEnumerator>();
-}
-
-base::File::Error NativeFileUtil::Touch(
-    const base::FilePath& path,
-    const base::Time& last_access_time,
-    const base::Time& last_modified_time) {
-  if (!base::TouchFile(path, last_access_time, last_modified_time))
-    return base::File::FILE_ERROR_FAILED;
-  return base::File::FILE_OK;
-}
-
-base::File::Error NativeFileUtil::Truncate(const base::FilePath& path,
-                                           int64 length) {
-  base::File file(path, base::File::FLAG_OPEN | base::File::FLAG_WRITE);
-  if (!file.IsValid())
-    return file.error_details();
-
-  if (!file.SetLength(length))
-    return base::File::FILE_ERROR_FAILED;
-
-  return base::File::FILE_OK;
-}
-
-bool NativeFileUtil::PathExists(const base::FilePath& path) {
-  return base::PathExists(path);
-}
-
-bool NativeFileUtil::DirectoryExists(const base::FilePath& path) {
-  return base::DirectoryExists(path);
-}
-
-base::File::Error NativeFileUtil::CopyOrMoveFile(
-    const base::FilePath& src_path,
-    const base::FilePath& dest_path,
-    FileSystemOperation::CopyOrMoveOption option,
-    CopyOrMoveMode mode) {
-  base::File::Info info;
-  base::File::Error error = NativeFileUtil::GetFileInfo(src_path, &info);
-  if (error != base::File::FILE_OK)
-    return error;
-  if (info.is_directory)
-    return base::File::FILE_ERROR_NOT_A_FILE;
-  base::Time last_modified = info.last_modified;
-
-  error = NativeFileUtil::GetFileInfo(dest_path, &info);
-  if (error != base::File::FILE_OK &&
-      error != base::File::FILE_ERROR_NOT_FOUND)
-    return error;
-  if (info.is_directory)
-    return base::File::FILE_ERROR_INVALID_OPERATION;
-  if (error == base::File::FILE_ERROR_NOT_FOUND) {
-    error = NativeFileUtil::GetFileInfo(dest_path.DirName(), &info);
-    if (error != base::File::FILE_OK)
-      return error;
-    if (!info.is_directory)
-      return base::File::FILE_ERROR_NOT_FOUND;
-  }
-
-  switch (mode) {
-    case COPY_NOSYNC:
-      if (!base::CopyFile(src_path, dest_path))
-        return base::File::FILE_ERROR_FAILED;
-      break;
-    case COPY_SYNC:
-      if (!CopyFileAndSync(src_path, dest_path))
-        return base::File::FILE_ERROR_FAILED;
-      break;
-    case MOVE:
-      if (!base::Move(src_path, dest_path))
-        return base::File::FILE_ERROR_FAILED;
-      break;
-  }
-
-  // Preserve the last modified time. Do not return error here even if
-  // the setting is failed, because the copy itself is successfully done.
-  if (option == FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED)
-    base::TouchFile(dest_path, last_modified, last_modified);
-
-  return base::File::FILE_OK;
-}
-
-base::File::Error NativeFileUtil::DeleteFile(const base::FilePath& path) {
-  if (!base::PathExists(path))
-    return base::File::FILE_ERROR_NOT_FOUND;
-  if (base::DirectoryExists(path))
-    return base::File::FILE_ERROR_NOT_A_FILE;
-  if (!base::DeleteFile(path, false))
-    return base::File::FILE_ERROR_FAILED;
-  return base::File::FILE_OK;
-}
-
-base::File::Error NativeFileUtil::DeleteDirectory(const base::FilePath& path) {
-  if (!base::PathExists(path))
-    return base::File::FILE_ERROR_NOT_FOUND;
-  if (!base::DirectoryExists(path))
-    return base::File::FILE_ERROR_NOT_A_DIRECTORY;
-  if (!base::IsDirectoryEmpty(path))
-    return base::File::FILE_ERROR_NOT_EMPTY;
-  if (!base::DeleteFile(path, false))
-    return base::File::FILE_ERROR_FAILED;
-  return base::File::FILE_OK;
-}
-
-}  // namespace storage