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diff --git a/chromium/third_party/nearby/src/connections/payload.h b/chromium/third_party/nearby/src/connections/payload.h
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+++ b/chromium/third_party/nearby/src/connections/payload.h
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+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CORE_PAYLOAD_H_
+#define CORE_PAYLOAD_H_
+
+#include <cstdint>
+#include <functional>
+#include <memory>
+#include <utility>
+
+#include "absl/types/variant.h"
+#include "internal/platform/byte_array.h"
+#include "internal/platform/input_stream.h"
+#include "internal/platform/payload_id.h"
+#include "internal/platform/prng.h"
+#include "internal/platform/core_config.h"
+#include "internal/platform/file.h"
+#include "internal/platform/logging.h"
+
+namespace location {
+namespace nearby {
+namespace connections {
+
+// Payload is default-constructible, and moveable, but not copyable container
+// that holds at most one instance of one of:
+// ByteArray, InputStream, or InputFile.
+class DLL_API Payload {
+ public:
+  using Id = PayloadId;
+  // Order of types in variant, and values in Type enum is important.
+  // Enum values must match respective variant types.
+  using Content = absl::variant<absl::monostate, ByteArray,
+                                std::function<InputStream&()>, InputFile>;
+  enum class Type { kUnknown = 0, kBytes = 1, kStream = 2, kFile = 3 };
+
+  Payload(Payload&& other) noexcept;
+  ~Payload();
+  Payload& operator=(Payload&& other) noexcept;
+
+  // Default (invalid) payload.
+  Payload();
+
+  // Constructors for outgoing payloads.
+  explicit Payload(ByteArray&& bytes);
+
+  explicit Payload(const ByteArray& bytes);
+  explicit Payload(InputFile file);
+  explicit Payload(std::function<InputStream&()> stream);
+
+  // Constructors for incoming payloads.
+  Payload(Id id, ByteArray&& bytes);
+  Payload(Id id, const ByteArray& bytes);
+  Payload(Id id, InputFile file);
+  Payload(Id id, std::function<InputStream&()> stream);
+
+
+  // Returns ByteArray payload, if it has been defined, or empty ByteArray.
+  const ByteArray& AsBytes() const&;
+  ByteArray&& AsBytes() &&;
+  // Returns InputStream* payload, if it has been defined, or nullptr.
+  InputStream* AsStream();
+  // Returns InputFile* payload, if it has been defined, or nullptr.
+  InputFile* AsFile();
+
+  // Returns Payload unique ID.
+  Id GetId() const;
+
+  // Returns Payload type.
+  Type GetType() const;
+
+  // Sets the payload offset in bytes
+  void SetOffset(size_t offset);
+
+  size_t GetOffset();
+
+  // Generate Payload Id; to be passed to outgoing file constructor.
+  static Id GenerateId();
+
+ private:
+  Type FindType() const;
+
+  Content content_;
+  Id id_{GenerateId()};
+  Type type_{FindType()};
+  size_t offset_{0};
+};
+
+}  // namespace connections
+}  // namespace nearby
+}  // namespace location
+
+#endif  // CORE_PAYLOAD_H_