[BlobAsync] Moving async handling into BlobStorageContext & quota out.

storage/browser/blob/blob_entry.cc

+// Copyright 2015 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 <utility>
+
+#include "base/callback.h"
+#include "base/containers/hash_tables.h"
+#include "base/metrics/histogram.h"
+#include "storage/browser/blob/blob_data_handle.h"
+#include "storage/browser/blob/blob_data_item.h"
+#include "storage/browser/blob/blob_entry.h"
+#include "storage/browser/blob/shareable_blob_data_item.h"
+#include "storage/common/data_element.h"
+
+namespace storage {
+
+BlobEntry::ItemCopyEntry::ItemCopyEntry(
+    scoped_refptr<ShareableBlobDataItem> source_item,
+    size_t source_item_offset,
+    scoped_refptr<ShareableBlobDataItem> dest_item)
+    : source_item(std::move(source_item)),
+      source_item_offset(source_item_offset),
+      dest_item(std::move(dest_item)) {}
+
+BlobEntry::ItemCopyEntry::ItemCopyEntry(ItemCopyEntry&& other) = default;
+BlobEntry::ItemCopyEntry& BlobEntry::ItemCopyEntry::operator=(
+    BlobEntry::ItemCopyEntry&& rhs) = default;
+BlobEntry::ItemCopyEntry::~ItemCopyEntry() {}
+
+BlobEntry::BuildingState::BuildingState(
+    bool transport_items_present,
+    TransportAllowedCallback transport_allowed_callback,
+    size_t num_building_dependent_blobs)
+    : transport_items_present(transport_items_present),
+      transport_allowed_callback(transport_allowed_callback),
+      num_building_dependent_blobs(num_building_dependent_blobs) {}
+
+BlobEntry::BuildingState::~BuildingState() {}
+
+BlobEntry::BlobEntry(const std::string& content_type,
+                     const std::string& content_disposition)
+    : content_type_(content_type), content_disposition_(content_disposition) {}
+BlobEntry::~BlobEntry() {}
+
+void BlobEntry::AppendSharedBlobItem(
+    scoped_refptr<ShareableBlobDataItem> item) {
+  DCHECK(item);
+  if (!items_.empty()) {
+    offsets_.push_back(size_);
+  }
+  size_ += item->item()->length();
+  items_.push_back(std::move(item));
+}
+
+const std::vector<scoped_refptr<ShareableBlobDataItem>>& BlobEntry::items()
+    const {
+  return items_;
+}
+
+void BlobEntry::ClearItems() {
+  items_.clear();
+}
+
+void BlobEntry::ClearOffsets() {
+  offsets_.clear();
+}
+
+}  // namespace storage