Revert of Resubmit of imageWriterPrivate.destroyPartitions.

chrome/browser/extensions/api/image_writer_private/destroy_partitions_operation.cc

-// Copyright 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.
-
-#include "base/file_util.h"
-#include "chrome/browser/extensions/api/image_writer_private/destroy_partitions_operation.h"
-#include "chrome/browser/extensions/api/image_writer_private/error_messages.h"
-
-namespace extensions {
-namespace image_writer {
-
-// Number of bytes for the maximum partition table size.  By wiping this many
-// bytes we can essentially guarantee the header and associated information will
-// be wiped. See http://crbug.com/328246 for more information.
-const int kPartitionTableSize = 1 * 1024;
-
-DestroyPartitionsOperation::DestroyPartitionsOperation(
-    base::WeakPtr<OperationManager> manager,
-    const ExtensionId& extension_id,
-    const std::string& storage_unit_id)
-    : Operation(manager, extension_id, storage_unit_id) {
-  verify_write_ = false;
-}
-
-DestroyPartitionsOperation::~DestroyPartitionsOperation() {}
-
-void DestroyPartitionsOperation::Start() {
-  if (!temp_dir_.CreateUniqueTempDir()) {
-    Error(error::kTempDirError);
-    return;
-  }
-
-  if (!base::CreateTemporaryFileInDir(temp_dir_.path(), &image_path_)) {
-    Error(error::kTempFileError);
-    return;
-  }
-
-  scoped_ptr<char[]> buffer(new char[kPartitionTableSize]);
-  memset(buffer.get(), 0, kPartitionTableSize);
-
-  if (file_util::WriteFile(image_path_, buffer.get(), kPartitionTableSize) !=
-      kPartitionTableSize) {
-    Error(error::kTempFileError);
-    return;
-  }
-
-  WriteStart();
-}
-
-}  // namespace image_writer
-}  // namespace extensions