1 files changed, 39 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/modules/cache_storage/cache_storage_blob_client_list.h b/chromium/third_party/blink/renderer/modules/cache_storage/cache_storage_blob_client_list.h
new file mode 100644
index 00000000000..23b0452dadc
--- /dev/null
+++ b/chromium/third_party/blink/renderer/modules/cache_storage/cache_storage_blob_client_list.h
@@ -0,0 +1,39 @@
+// Copyright 2019 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 THIRD_PARTY_BLINK_RENDERER_MODULES_CACHE_STORAGE_CACHE_STORAGE_BLOB_CLIENT_LIST_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_CACHE_STORAGE_CACHE_STORAGE_BLOB_CLIENT_LIST_H_
+
+#include "mojo/public/cpp/bindings/receiver.h"
+#include "third_party/blink/public/mojom/blob/blob.mojom-blink.h"
+#include "third_party/blink/renderer/platform/heap/heap.h"
+#include "third_party/blink/renderer/platform/loader/fetch/data_pipe_bytes_consumer.h"
+
+namespace blink {
+
+// This class holds a list of BlobReaderClient implementations alive until
+// they complete or the entire list is garbage collected.
+class CacheStorageBlobClientList
+    : public GarbageCollected<CacheStorageBlobClientList> {
+ public:
+  CacheStorageBlobClientList() = default;
+  void AddClient(
+      mojo::PendingReceiver<mojom::blink::BlobReaderClient>
+          client_pending_receiver,
+      DataPipeBytesConsumer::CompletionNotifier* completion_notifier);
+
+  void Trace(blink::Visitor* visitor);
+
+ private:
+  class Client;
+
+  void RevokeClient(Client* client);
+
+  HeapVector<Member<Client>> clients;
+  DISALLOW_COPY_AND_ASSIGN(CacheStorageBlobClientList);
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_CACHE_STORAGE_CACHE_STORAGE_BLOB_CLIENT_LIST_H_