1 files changed, 50 insertions, 0 deletions
diff --git a/netwerk/protocol/http/EarlyHintsService.h b/netwerk/protocol/http/EarlyHintsService.h
new file mode 100644
index 0000000000..eda146f3ca
--- /dev/null
+++ b/netwerk/protocol/http/EarlyHintsService.h
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et tw=80 : */
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_net_EarlyHintsService_h
+#define mozilla_net_EarlyHintsService_h
+
+#include "mozilla/Maybe.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/TimeStamp.h"
+#include "nsStringFwd.h"
+#include "nsTArray.h"
+
+class nsIChannel;
+class nsIURI;
+
+namespace mozilla::net {
+
+class EarlyHintConnectArgs;
+class OngoingEarlyHints;
+
+class EarlyHintsService {
+ public:
+  EarlyHintsService();
+  ~EarlyHintsService();
+  void EarlyHint(const nsACString& aLinkHeader, nsIURI* aBaseURI,
+                 nsIChannel* aChannel, const nsACString& aReferrerPolicy,
+                 const nsACString& aCSPHeader);
+  void FinalResponse(uint32_t aResponseStatus);
+  void Cancel(const nsACString& aReason);
+
+  void RegisterLinksAndGetConnectArgs(
+      nsTArray<EarlyHintConnectArgs>& aOutLinks);
+
+ private:
+  void CollectTelemetry(Maybe<uint32_t> aResponseStatus);
+  void CollectLinkTypeTelemetry(const nsAString& aRel);
+
+  Maybe<TimeStamp> mFirstEarlyHint;
+  uint32_t mEarlyHintsCount{0};
+
+  RefPtr<OngoingEarlyHints> mOngoingEarlyHints;
+};
+
+}  // namespace mozilla::net
+
+#endif  // mozilla_net_EarlyHintsService_h