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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_INTEREST_GROUP_AUCTION_DOWNLOADER_DELEGATE_H_
#define CONTENT_BROWSER_INTEREST_GROUP_AUCTION_DOWNLOADER_DELEGATE_H_
#include <memory>
#include <optional>
#include <string>
#include "base/types/pass_key.h"
#include "content/public/browser/frame_tree_node_id.h"
#include "content/services/auction_worklet/public/cpp/auction_downloader.h"
#include "services/network/public/mojom/url_response_head.mojom-forward.h"
class GURL;
namespace network {
struct ResourceRequest;
struct URLLoaderCompletionStatus;
} // namespace network
namespace content {
// AuctionDownloader::NetworkEventsDelegate that wires up devtools to a request
// that's initiated by the browser process, and also sets user agent headers, if
// needed. Modifies passed in ResourceRequest to report information to devtools,
// and makes a number of calls into devtools as well. Intended to be used
// unconditionally, regardless of whether devtools is open for a tab or not.
class AuctionDownloaderDelegate
: public auction_worklet::AuctionDownloader::NetworkEventsDelegate {
public:
AuctionDownloaderDelegate(base::PassKey<AuctionDownloaderDelegate>,
FrameTreeNodeId frame_tree_node_id);
~AuctionDownloaderDelegate() override;
// Creates an AuctionDownloaderDelegate if `frame_tree_node_id` is
// non-empty. When the ID is empty, FrameTreeNode::GloballyFindByID() and
// devtools_instrumentation methods that call it CHECK, so safest to not
// create an AuctionDownloaderDelegate at all in that case. The ID
// should typically only be empty in unit tests.
static std::unique_ptr<AuctionDownloaderDelegate> MaybeCreate(
FrameTreeNodeId frame_tree_node_id);
// auction_worklet::AuctionDownloader::NetworkEventsDelegate implementation:
void OnNetworkSendRequest(network::ResourceRequest& request) override;
void OnNetworkResponseReceived(
const GURL& url,
const network::mojom::URLResponseHead& head) override;
void OnNetworkRequestComplete(
const network::URLLoaderCompletionStatus& status) override;
private:
// Identifies the FrameTreeNode that triggered the request. Needed for
// devtools logging.
const FrameTreeNodeId frame_tree_node_id_;
// Copied from ResourceRequest passed to OnNetworkSendRequest().
std::optional<std::string> request_id_;
};
} // namespace content
#endif // CONTENT_BROWSER_INTEREST_GROUP_AUCTION_DOWNLOADER_DELEGATE_H_
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