public void MergeFrom(ConsolidationStrategy other)
        {
            if (other == null)
            {
                return;
            }
            switch (other.StrategyCase)
            {
            case StrategyOneofCase.None:
                if (None == null)
                {
                    None = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.NoConsolidation();
                }
                None.MergeFrom(other.None);
                break;

            case StrategyOneofCase.Legacy:
                if (Legacy == null)
                {
                    Legacy = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.Legacy();
                }
                Legacy.MergeFrom(other.Legacy);
                break;
            }

            _unknownFields = pb::UnknownFieldSet.MergeFrom(_unknownFields, other._unknownFields);
        }
        void pb::IBufferMessage.InternalMergeFrom(ref pb::ParseContext input)
        {
            uint tag;

            while ((tag = input.ReadTag()) != 0)
            {
                switch (tag)
                {
                default:
                    _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, ref input);
                    break;

                case 10: {
                    global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.NoConsolidation subBuilder = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.NoConsolidation();
                    if (strategyCase_ == StrategyOneofCase.None)
                    {
                        subBuilder.MergeFrom(None);
                    }
                    input.ReadMessage(subBuilder);
                    None = subBuilder;
                    break;
                }

                case 18: {
                    global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.Legacy subBuilder = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.Legacy();
                    if (strategyCase_ == StrategyOneofCase.Legacy)
                    {
                        subBuilder.MergeFrom(Legacy);
                    }
                    input.ReadMessage(subBuilder);
                    Legacy = subBuilder;
                    break;
                }
                }
            }
        }
        public void MergeFrom(pb::CodedInputStream input)
        {
    #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE
            input.ReadRawMessage(this);
    #else
            uint tag;
            while ((tag = input.ReadTag()) != 0)
            {
                switch (tag)
                {
                default:
                    _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, input);
                    break;

                case 10: {
                    global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.NoConsolidation subBuilder = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.NoConsolidation();
                    if (strategyCase_ == StrategyOneofCase.None)
                    {
                        subBuilder.MergeFrom(None);
                    }
                    input.ReadMessage(subBuilder);
                    None = subBuilder;
                    break;
                }

                case 18: {
                    global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.Legacy subBuilder = new global::Google.Apps.Drive.Activity.V2.ConsolidationStrategy.Types.Legacy();
                    if (strategyCase_ == StrategyOneofCase.Legacy)
                    {
                        subBuilder.MergeFrom(Legacy);
                    }
                    input.ReadMessage(subBuilder);
                    Legacy = subBuilder;
                    break;
                }
                }
            }
    #endif
        }