Remove unused platform interface method.

PiperOrigin-RevId: 819236789

internal/platform/implementation/BUILD

@@ -157,7 +157,6 @@ cc_library(
         "credential_storage.h",
         "http_loader.h",
         "psk_info.h",
-        "server_sync.h",
         "webrtc.h",
         "wifi.h",
         "wifi_direct.h",

internal/platform/implementation/apple/Tests/GNCPlatformTest.mm

@@ -314,11 +314,6 @@ void GNCEnsureFileAtPath(std::string path) {
   XCTAssertNotEqual(ble_medium.get(), nullptr);
 }
 
-- (void)testCreateServerSyncMedium {
-  auto server_sync_medium = nearby::api::ImplementationPlatform::CreateServerSyncMedium();
-  XCTAssertEqual(server_sync_medium.get(), nullptr);
-}
-
 - (void)testCreateWifiDirectMedium {
   auto wifi_direct_medium = nearby::api::ImplementationPlatform::CreateWifiDirectMedium();
   XCTAssertEqual(wifi_direct_medium.get(), nullptr);

internal/platform/implementation/apple/platform.mm

@@ -177,10 +177,6 @@ std::unique_ptr<ble::BleMedium> ImplementationPlatform::CreateBleMedium(
   return std::make_unique<apple::BleMedium>();
 }
 
-std::unique_ptr<ServerSyncMedium> ImplementationPlatform::CreateServerSyncMedium() {
-  return nullptr;
-}
-
 std::unique_ptr<WifiMedium> ImplementationPlatform::CreateWifiMedium() {
   return std::make_unique<apple::WifiMedium>();
 }

internal/platform/implementation/g3/platform.cc

@@ -44,7 +44,6 @@
 #include "internal/platform/implementation/output_file.h"
 #include "internal/platform/implementation/preferences_manager.h"
 #include "internal/platform/implementation/scheduled_executor.h"
-#include "internal/platform/implementation/server_sync.h"
 #include "internal/platform/implementation/shared/count_down_latch.h"
 #include "internal/platform/implementation/submittable_executor.h"
 #include "internal/platform/implementation/timer.h"
@@ -196,11 +195,6 @@ ImplementationPlatform::CreateCredentialStorage() {
   return std::make_unique<g3::CredentialStorageImpl>();
 }
 
-std::unique_ptr<ServerSyncMedium>
-ImplementationPlatform::CreateServerSyncMedium() {
-  return std::unique_ptr<ServerSyncMedium>(/*new ServerSyncMediumImpl()*/);
-}
-
 std::unique_ptr<WifiMedium> ImplementationPlatform::CreateWifiMedium() {
   return std::make_unique<g3::WifiMedium>();
 }

internal/platform/implementation/platform.h

@@ -30,7 +30,6 @@
 #include "internal/platform/implementation/condition_variable.h"
 #include "internal/platform/implementation/count_down_latch.h"
 #include "internal/platform/implementation/credential_storage.h"
-#include "internal/platform/implementation/crypto.h"
 #include "internal/platform/implementation/device_info.h"
 #include "internal/platform/implementation/http_loader.h"
 #include "internal/platform/implementation/input_file.h"
@@ -38,9 +37,7 @@
 #include "internal/platform/implementation/mutex.h"
 #include "internal/platform/implementation/output_file.h"
 #include "internal/platform/implementation/scheduled_executor.h"
-#include "internal/platform/implementation/server_sync.h"
 #include "internal/platform/implementation/submittable_executor.h"
-#include "internal/platform/implementation/system_clock.h"
 #include "internal/platform/implementation/timer.h"
 #ifndef NO_WEBRTC
 #include "internal/platform/implementation/webrtc.h"
@@ -131,7 +128,6 @@ class ImplementationPlatform {
   static std::unique_ptr<api::ble::BleMedium> CreateBleMedium(
       api::BluetoothAdapter&);
   static std::unique_ptr<api::CredentialStorage> CreateCredentialStorage();
-  static std::unique_ptr<ServerSyncMedium> CreateServerSyncMedium();
   static std::unique_ptr<WifiMedium> CreateWifiMedium();
   static std::unique_ptr<WifiLanMedium> CreateWifiLanMedium();
   static std::unique_ptr<WifiHotspotMedium> CreateWifiHotspotMedium();

internal/platform/implementation/server_sync.h

@@ -1,74 +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 PLATFORM_API_SERVER_SYNC_H_
-#define PLATFORM_API_SERVER_SYNC_H_
-
-#include <string>
-
-#include "absl/strings/string_view.h"
-#include "internal/platform/byte_array.h"
-
-namespace nearby {
-namespace api {
-
-// Abstraction that represents a Nearby endpoint exchanging data through
-// ServerSync Medium.
-class ServerSyncDevice {
- public:
-  virtual ~ServerSyncDevice() = default;
-
-  virtual std::string GetName() const = 0;
-  virtual std::string GetGuid() const = 0;
-  virtual std::string GetOwnGuid() const = 0;
-};
-
-// Container of operations that can be performed over the Chrome Sync medium.
-class ServerSyncMedium {
- public:
-  virtual ~ServerSyncMedium() = default;
-
-  virtual bool StartAdvertising(absl::string_view service_id,
-                                absl::string_view endpoint_id,
-                                const ByteArray& endpoint_info) = 0;
-  virtual void StopAdvertising(absl::string_view service_id) = 0;
-
-  class DiscoveredDeviceCallback {
-   public:
-    virtual ~DiscoveredDeviceCallback() = default;
-
-    // Called on a new ServerSyncDevice discovery.
-    virtual void OnDeviceDiscovered(ServerSyncDevice* device,
-                                    absl::string_view service_id,
-                                    absl::string_view endpoint_id,
-                                    const ByteArray& endpoint_info) = 0;
-    // Called when ServerSyncDevice is no longer reachable.
-    virtual void OnDeviceLost(ServerSyncDevice* device,
-                              absl::string_view service_id) = 0;
-  };
-
-  // Returns true once the Chrome Sync scan has been initiated.
-  virtual bool StartDiscovery(
-      absl::string_view service_id,
-      const DiscoveredDeviceCallback& discovered_device_callback) = 0;
-  // Returns true once Chrome Sync scan for service_id is well and truly
-  // stopped; after this returns, there must be no more invocations of the
-  // DiscoveredDeviceCallback passed in to startScanning() for service_id.
-  virtual void StopDiscovery(absl::string_view service_id) = 0;
-};
-
-}  // namespace api
-}  // namespace nearby
-
-#endif  // PLATFORM_API_SERVER_SYNC_H_