[USS] Implement SharedModelTypeProcessor::GetAllNodes for USS

components/sync/protocol/proto_value_conversions.h

 // Copyright 2012 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.
 
 // Keep this file in sync with the .proto files in this directory.
 
 #ifndef COMPONENTS_SYNC_PROTOCOL_PROTO_VALUE_CONVERSIONS_H_
 #define COMPONENTS_SYNC_PROTOCOL_PROTO_VALUE_CONVERSIONS_H_
 
 #include <memory>
@@ skipping 19 matching lines @@
 class ClientToServerMessage;
 class ClientToServerResponse;
 class CollapsedInfo;
 class DatatypeAssociationStats;
 class DebugEventInfo;
 class DebugInfo;
 class DeviceInfoSpecifics;
 class DeviceInformation;
 class DictionarySpecifics;
 class EncryptedData;
+class EntityMetadata;
 class EntitySpecifics;
 class EverythingDirective;
 class ExperimentsSpecifics;
 class ExtensionSettingSpecifics;
 class ExtensionSpecifics;
 class FaviconImageSpecifics;
 class FaviconTrackingSpecifics;
 class GlobalIdDirective;
 class HistoryDeleteDirectiveSpecifics;
 class KeystoreEncryptionFlagsSpecifics;
@@ skipping 243 matching lines @@
 
 std::unique_ptr<base::DictionaryValue> SyncCycleCompletedEventInfoToValue(
     const sync_pb::SyncCycleCompletedEventInfo& proto);
 
 std::unique_ptr<base::DictionaryValue> ClientConfigParamsToValue(
     const sync_pb::ClientConfigParams& proto);
 
 std::unique_ptr<base::DictionaryValue> AttachmentIdProtoToValue(
     const sync_pb::AttachmentIdProto& proto);
 
+std::unique_ptr<base::DictionaryValue> EntityMetadataToValue(
+    const sync_pb::EntityMetadata& metadata);
+
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_PROTOCOL_PROTO_VALUE_CONVERSIONS_H_