[Storage] Blob Storage Refactoring pt 1

storage/common/blob/blob_data.h

-// 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 STORAGE_COMMON_BLOB_BLOB_DATA_H_
-#define STORAGE_COMMON_BLOB_BLOB_DATA_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/time/time.h"
-#include "storage/common/blob/shareable_file_reference.h"
-#include "storage/common/data_element.h"
-#include "storage/common/storage_common_export.h"
-#include "url/gurl.h"
-
-namespace storage {
-
-class STORAGE_COMMON_EXPORT BlobData
-    : public base::RefCounted<BlobData> {
- public:
-  typedef storage::DataElement Item;
-
-  // TODO(michaeln): remove the empty ctor when we fully transition to uuids.
-  BlobData();
-  explicit BlobData(const std::string& uuid);
-
-  void AppendData(const std::string& data) {
-    AppendData(data.c_str(), data.size());
-  }
-
-  void AppendData(const char* data, size_t length);
-
-  void AppendFile(const base::FilePath& file_path, uint64 offset, uint64 length,
-                  const base::Time& expected_modification_time);
-  void AppendBlob(const std::string& uuid, uint64 offset, uint64 length);
-  void AppendFileSystemFile(const GURL& url, uint64 offset, uint64 length,
-                            const base::Time& expected_modification_time);
-
-  void AttachShareableFileReference(ShareableFileReference* reference) {
-    shareable_files_.push_back(reference);
-  }
-
-  const std::string& uuid() const { return uuid_; }
-  const std::vector<Item>& items() const { return items_; }
-  const std::string& content_type() const { return content_type_; }
-  void set_content_type(const std::string& content_type) {
-    content_type_ = content_type;
-  }
-
-  const std::string& content_disposition() const {
-    return content_disposition_;
-  }
-  void set_content_disposition(const std::string& content_disposition) {
-    content_disposition_ = content_disposition;
-  }
-
-  int64 GetMemoryUsage() const;
-
- private:
-  friend class base::RefCounted<BlobData>;
-  virtual ~BlobData();
-
-  std::string uuid_;
-  std::string content_type_;
-  std::string content_disposition_;
-  std::vector<Item> items_;
-  std::vector<scoped_refptr<ShareableFileReference> > shareable_files_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlobData);
-};
-
-#if defined(UNIT_TEST)
-inline bool operator==(const BlobData& a, const BlobData& b) {
-  if (a.content_type() != b.content_type())
-    return false;
-  if (a.content_disposition() != b.content_disposition())
-    return false;
-  if (a.items().size() != b.items().size())
-    return false;
-  for (size_t i = 0; i < a.items().size(); ++i) {
-    if (a.items()[i] != b.items()[i])
-      return false;
-  }
-  return true;
-}
-
-inline bool operator!=(const BlobData& a, const BlobData& b) {
-  return !(a == b);
-}
-#endif  // defined(UNIT_TEST)
-
-}  // namespace storage
-
-#endif  // STORAGE_COMMON_BLOB_BLOB_DATA_H_