[Storage] Blob Storage Refactoring pt 1

storage/common/blob/blob_data.cc

-// 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 "storage/common/blob/blob_data.h"
-
-#include "base/logging.h"
-#include "base/strings/sys_string_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-
-namespace storage {
-
-BlobData::BlobData() {}
-BlobData::BlobData(const std::string& uuid)
-    : uuid_(uuid) {
-}
-
-BlobData::~BlobData() {}
-
-void BlobData::AppendData(const char* data, size_t length) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToBytes(data, length);
-}
-
-void BlobData::AppendFile(const base::FilePath& file_path,
-                          uint64 offset, uint64 length,
-                          const base::Time& expected_modification_time) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToFilePathRange(file_path, offset, length,
-                                   expected_modification_time);
-}
-
-void BlobData::AppendBlob(const std::string& uuid,
-                          uint64 offset, uint64 length) {
-  DCHECK_GT(length, 0ul);
-  items_.push_back(Item());
-  items_.back().SetToBlobRange(uuid, offset, length);
-}
-
-void BlobData::AppendFileSystemFile(
-    const GURL& url, uint64 offset,
-    uint64 length,
-    const base::Time& expected_modification_time) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToFileSystemUrlRange(url, offset, length,
-                                        expected_modification_time);
-}
-
-int64 BlobData::GetMemoryUsage() const {
-  int64 memory = 0;
-  for (std::vector<Item>::const_iterator iter = items_.begin();
-       iter != items_.end(); ++iter) {
-    if (iter->type() == Item::TYPE_BYTES)
-      memory += iter->length();
-  }
-  return memory;
-}
-
-}  // namespace storage