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diff --git a/chromium/third_party/nearby/src/cpp/core/internal/offline_frames.h b/chromium/third_party/nearby/src/cpp/core/internal/offline_frames.h
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--- a/chromium/third_party/nearby/src/cpp/core/internal/offline_frames.h
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@@ -1,105 +0,0 @@
-// 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_INTERNAL_OFFLINE_FRAMES_H_
-#define CORE_INTERNAL_OFFLINE_FRAMES_H_
-
-#include <cstdint>
-#include <vector>
-
-#include "core/options.h"
-#include "platform/base/byte_array.h"
-#include "platform/base/exception.h"
-#include "proto/connections/offline_wire_formats.pb.h"
-
-namespace location {
-namespace nearby {
-namespace connections {
-namespace parser {
-
-using UpgradePathInfo = BandwidthUpgradeNegotiationFrame::UpgradePathInfo;
-
-// Serialize/Deserialize Nearby Connections Protocol messages.
-
-// Parses incoming message.
-// Returns OfflineFrame if parser was able to understand it, or
-// Exception::kInvalidProtocolBuffer, if parser failed.
-ExceptionOr<OfflineFrame> FromBytes(const ByteArray& offline_frame_bytes);
-
-// Returns FrameType of a parsed message, or
-// V1Frame::UNKNOWN_FRAME_TYPE, if frame contents is not recognized.
-V1Frame::FrameType GetFrameType(const OfflineFrame& offline_frame);
-
-// Builds Connection Request / Response messages.
-ByteArray ForConnectionRequest(const std::string& endpoint_id,
- const ByteArray& endpoint_info,
- std::int32_t nonce, bool supports_5_ghz,
- const std::string& bssid,
- const std::vector<Medium>& mediums,
- std::int32_t keep_alive_interval_millis,
- std::int32_t keep_alive_timeout_millis);
-ByteArray ForConnectionResponse(std::int32_t status);
-
-// Builds Payload transfer messages.
-ByteArray ForDataPayloadTransfer(
- const PayloadTransferFrame::PayloadHeader& header,
- const PayloadTransferFrame::PayloadChunk& chunk);
-ByteArray ForControlPayloadTransfer(
- const PayloadTransferFrame::PayloadHeader& header,
- const PayloadTransferFrame::ControlMessage& control);
-
-// Builds Bandwidth Upgrade [BWU] messages.
-ByteArray ForBwuIntroduction(const std::string& endpoint_id);
-ByteArray ForBwuIntroductionAck();
-ByteArray ForBwuWifiHotspotPathAvailable(const std::string& ssid,
- const std::string& password,
- std::int32_t port,
- const std::string& gateway,
- bool supports_disabling_encryption);
-ByteArray ForBwuWifiLanPathAvailable(const std::string& ip_address,
- std::int32_t port);
-ByteArray ForBwuWifiAwarePathAvailable(const std::string& service_id,
- const std::string& service_info,
- const std::string& password,
- bool supports_disabling_encryption);
-ByteArray ForBwuWifiDirectPathAvailable(const std::string& ssid,
- const std::string& password,
- std::int32_t port,
- std::int32_t frequency,
- bool supports_disabling_encryption);
-ByteArray ForBwuBluetoothPathAvailable(const std::string& service_id,
- const std::string& mac_address);
-ByteArray ForBwuWebrtcPathAvailable(const std::string& peer_id,
- const LocationHint& location_hint_a);
-ByteArray ForBwuFailure(const UpgradePathInfo& info);
-ByteArray ForBwuLastWrite();
-ByteArray ForBwuSafeToClose();
-
-ByteArray ForKeepAlive();
-ByteArray ForDisconnection();
-
-UpgradePathInfo::Medium MediumToUpgradePathInfoMedium(Medium medium);
-Medium UpgradePathInfoMediumToMedium(UpgradePathInfo::Medium medium);
-
-ConnectionRequestFrame::Medium MediumToConnectionRequestMedium(Medium medium);
-Medium ConnectionRequestMediumToMedium(ConnectionRequestFrame::Medium medium);
-std::vector<Medium> ConnectionRequestMediumsToMediums(
- const ConnectionRequestFrame& connection_request_frame);
-
-} // namespace parser
-} // namespace connections
-} // namespace nearby
-} // namespace location
-
-#endif // CORE_INTERNAL_OFFLINE_FRAMES_H_