1 files changed, 63 insertions, 0 deletions
diff --git a/storage/common/blob/blob_data.cc b/storage/common/blob/blob_data.cc
new file mode 100644
index 0000000..23f73e3
--- /dev/null
+++ b/storage/common/blob/blob_data.cc
@@ -0,0 +1,63 @@
+// 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