19/public/cpp/fake_service_connection.cc

// Copyright 2019 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.

#include "chromeos/services/machine_learning/public/cpp/fake_service_connection.h"

#include <utility>

#include "base/bind.h"
#include "base/notreached.h"
#include "third_party/abseil-cpp/absl/types/optional.h"

namespace chromeos {
namespace machine_learning {

FakeServiceConnectionImpl::FakeServiceConnectionImpl()
    : output_tensor_(mojom::Tensor::New()),
      load_handwriting_model_result_(mojom::LoadHandwritingModelResult::OK),
      load_web_platform_handwriting_model_result_(
          mojom::LoadHandwritingModelResult::OK),
      load_model_result_(mojom::LoadModelResult::OK),
      load_text_classifier_result_(mojom::LoadModelResult::OK),
      load_soda_result_(mojom::LoadModelResult::OK),
      create_graph_executor_result_(mojom::CreateGraphExecutorResult::OK),
      execute_result_(mojom::ExecuteResult::OK),
      async_mode_(false) {}

FakeServiceConnectionImpl::~FakeServiceConnectionImpl() {}

mojom::MachineLearningService&
FakeServiceConnectionImpl::GetMachineLearningService() {
  DCHECK(machine_learning_service_)
      << "Call Initialize() before GetMachineLearningService()";
  return *machine_learning_service_.get();
}

void FakeServiceConnectionImpl::BindMachineLearningService(
    mojo::PendingReceiver<mojom::MachineLearningService> receiver) {
  DCHECK(machine_learning_service_)
      << "Call Initialize() before BindMachineLearningService()";
  machine_learning_service_->Clone(std::move(receiver));
}

void FakeServiceConnectionImpl::Clone(
    mojo::PendingReceiver<mojom::MachineLearningService> receiver) {
  clone_ml_service_receivers_.Add(this, std::move(receiver));
}

void FakeServiceConnectionImpl::Initialize() {
  clone_ml_service_receivers_.Add(
      this, machine_learning_service_.BindNewPipeAndPassReceiver());
}

void FakeServiceConnectionImpl::LoadBuiltinModel(
    mojom::BuiltinModelSpecPtr spec,
    mojo::PendingReceiver<mojom::Model> receiver,
    mojom::MachineLearningService::LoadBuiltinModelCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadBuiltinModelCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadFlatBufferModel(
    mojom::FlatBufferModelSpecPtr spec,
    mojo::PendingReceiver<mojom::Model> receiver,
    mojom::MachineLearningService::LoadFlatBufferModelCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadFlatBufferModelCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::REMOVED_0(
    mojo::PendingReceiver<mojom::GraphExecutor> receiver,
    mojom::Model::REMOVED_0Callback callback) {
  NOTIMPLEMENTED();
}

void FakeServiceConnectionImpl::REMOVED_4(
    mojom::HandwritingRecognizerSpecPtr spec,
    mojo::PendingReceiver<mojom::HandwritingRecognizer> receiver,
    mojom::MachineLearningService::REMOVED_4Callback callback) {
  NOTIMPLEMENTED();
}

void FakeServiceConnectionImpl::CreateGraphExecutor(
    mojom::GraphExecutorOptionsPtr options,
    mojo::PendingReceiver<mojom::GraphExecutor> receiver,
    mojom::Model::CreateGraphExecutorCallback callback) {
  ScheduleCall(
      base::BindOnce(&FakeServiceConnectionImpl::HandleCreateGraphExecutorCall,
                     base::Unretained(this), std::move(options),
                     std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadTextClassifier(
    mojo::PendingReceiver<mojom::TextClassifier> receiver,
    mojom::MachineLearningService::LoadTextClassifierCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadTextClassifierCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadHandwritingModel(
    mojom::HandwritingRecognizerSpecPtr spec,
    mojo::PendingReceiver<mojom::HandwritingRecognizer> receiver,
    mojom::MachineLearningService::LoadHandwritingModelCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadHandwritingModelCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::HandleLoadWebPlatformHandwritingModelCall(
    mojo::PendingReceiver<web_platform::mojom::HandwritingRecognizer> receiver,
    mojom::MachineLearningService::LoadHandwritingModelCallback callback) {
  if (load_handwriting_model_result_ == mojom::LoadHandwritingModelResult::OK)
    web_platform_handwriting_receivers_.Add(this, std::move(receiver));
  std::move(callback).Run(load_web_platform_handwriting_model_result_);
}

void FakeServiceConnectionImpl::LoadWebPlatformHandwritingModel(
    web_platform::mojom::HandwritingModelConstraintPtr constraint,
    mojo::PendingReceiver<web_platform::mojom::HandwritingRecognizer> receiver,
    mojom::MachineLearningService::LoadWebPlatformHandwritingModelCallback
        callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadWebPlatformHandwritingModelCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadGrammarChecker(
    mojo::PendingReceiver<mojom::GrammarChecker> receiver,
    mojom::MachineLearningService::LoadGrammarCheckerCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadGrammarCheckerCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadSpeechRecognizer(
    mojom::SodaConfigPtr soda_config,
    mojo::PendingRemote<mojom::SodaClient> soda_client,
    mojo::PendingReceiver<mojom::SodaRecognizer> soda_recognizer,
    mojom::MachineLearningService::LoadSpeechRecognizerCallback callback) {
  ScheduleCall(
      base::BindOnce(&FakeServiceConnectionImpl::HandleLoadSpeechRecognizerCall,
                     base::Unretained(this), std::move(soda_client),
                     std::move(soda_recognizer), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadTextSuggester(
    mojo::PendingReceiver<mojom::TextSuggester> receiver,
    mojom::TextSuggesterSpecPtr spec,
    mojom::MachineLearningService::LoadTextSuggesterCallback callback) {
  ScheduleCall(
      base::BindOnce(&FakeServiceConnectionImpl::HandleLoadTextSuggesterCall,
                     base::Unretained(this), std::move(receiver),
                     std::move(spec), std::move(callback)));
}

void FakeServiceConnectionImpl::LoadDocumentScanner(
    mojo::PendingReceiver<mojom::DocumentScanner> receiver,
    mojom::MachineLearningService::LoadDocumentScannerCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleLoadDocumentScannerCall,
      base::Unretained(this), std::move(receiver), std::move(callback)));
}

void FakeServiceConnectionImpl::Execute(
    base::flat_map<std::string, mojom::TensorPtr> inputs,
    const std::vector<std::string>& output_names,
    mojom::GraphExecutor::ExecuteCallback callback) {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleExecuteCall,
                              base::Unretained(this), std::move(callback)));
}

void FakeServiceConnectionImpl::SetLoadModelFailure() {
  load_model_result_ = mojom::LoadModelResult::LOAD_MODEL_ERROR;
}

void FakeServiceConnectionImpl::SetCreateGraphExecutorFailure() {
  load_model_result_ = mojom::LoadModelResult::OK;
  create_graph_executor_result_ =
      mojom::CreateGraphExecutorResult::MODEL_INTERPRETATION_ERROR;
}

void FakeServiceConnectionImpl::SetExecuteFailure() {
  load_model_result_ = mojom::LoadModelResult::OK;
  create_graph_executor_result_ = mojom::CreateGraphExecutorResult::OK;
  execute_result_ = mojom::ExecuteResult::EXECUTION_ERROR;
}

void FakeServiceConnectionImpl::SetExecuteSuccess() {
  load_model_result_ = mojom::LoadModelResult::OK;
  create_graph_executor_result_ = mojom::CreateGraphExecutorResult::OK;
  execute_result_ = mojom::ExecuteResult::OK;
}

void FakeServiceConnectionImpl::SetTextClassifierSuccess() {
  load_text_classifier_result_ = mojom::LoadModelResult::OK;
}

void FakeServiceConnectionImpl::SetLoadTextClassifierFailure() {
  load_text_classifier_result_ = mojom::LoadModelResult::LOAD_MODEL_ERROR;
}

void FakeServiceConnectionImpl::SetOutputValue(
    const std::vector<int64_t>& shape,
    const std::vector<double>& value) {
  output_tensor_->shape = mojom::Int64List::New();
  output_tensor_->shape->value = shape;
  output_tensor_->data = mojom::ValueList::New();
  output_tensor_->data->set_float_list(mojom::FloatList::New());
  output_tensor_->data->get_float_list()->value = value;
}

void FakeServiceConnectionImpl::SetAsyncMode(bool async_mode) {
  async_mode_ = async_mode;
}

void FakeServiceConnectionImpl::RunPendingCalls() {
  for (auto& call : pending_calls_) {
    std::move(call).Run();
  }

  pending_calls_.clear();
}

void FakeServiceConnectionImpl::FlushForTesting() {
  clone_ml_service_receivers_.FlushForTesting();
  machine_learning_service_.FlushForTesting();
  model_receivers_.FlushForTesting();
  graph_receivers_.FlushForTesting();
  text_classifier_receivers_.FlushForTesting();
  handwriting_receivers_.FlushForTesting();
  web_platform_handwriting_receivers_.FlushForTesting();
  grammar_checker_receivers_.FlushForTesting();
  soda_recognizer_receivers_.FlushForTesting();
  text_suggester_receivers_.FlushForTesting();
  document_scanner_receivers_.FlushForTesting();
  soda_client_remotes_.FlushForTesting();
}

void FakeServiceConnectionImpl::HandleLoadBuiltinModelCall(
    mojo::PendingReceiver<mojom::Model> receiver,
    mojom::MachineLearningService::LoadBuiltinModelCallback callback) {
  if (load_model_result_ == mojom::LoadModelResult::OK)
    model_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_model_result_);
}

void FakeServiceConnectionImpl::HandleLoadTextClassifierCall(
    mojo::PendingReceiver<mojom::TextClassifier> receiver,
    mojom::MachineLearningService::LoadTextClassifierCallback callback) {
  if (load_text_classifier_result_ == mojom::LoadModelResult::OK)
    text_classifier_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_text_classifier_result_);
}

void FakeServiceConnectionImpl::ScheduleCall(base::OnceClosure call) {
  if (async_mode_)
    pending_calls_.push_back(std::move(call));
  else
    std::move(call).Run();
}

void FakeServiceConnectionImpl::HandleLoadFlatBufferModelCall(
    mojo::PendingReceiver<mojom::Model> receiver,
    mojom::MachineLearningService::LoadFlatBufferModelCallback callback) {
  if (load_model_result_ == mojom::LoadModelResult::OK)
    model_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_model_result_);
}

void FakeServiceConnectionImpl::HandleCreateGraphExecutorCall(
    mojom::GraphExecutorOptionsPtr options,
    mojo::PendingReceiver<mojom::GraphExecutor> receiver,
    mojom::Model::CreateGraphExecutorCallback callback) {
  if (create_graph_executor_result_ == mojom::CreateGraphExecutorResult::OK)
    graph_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(create_graph_executor_result_);
}

void FakeServiceConnectionImpl::HandleExecuteCall(
    mojom::GraphExecutor::ExecuteCallback callback) {
  if (execute_result_ != mojom::ExecuteResult::OK) {
    std::move(callback).Run(execute_result_, absl::nullopt);
    return;
  }

  std::vector<mojom::TensorPtr> output_tensors;
  output_tensors.push_back(output_tensor_.Clone());
  std::move(callback).Run(execute_result_, std::move(output_tensors));
}

void FakeServiceConnectionImpl::HandleAnnotateCall(
    mojom::TextAnnotationRequestPtr request,
    mojom::TextClassifier::AnnotateCallback callback) {
  std::vector<mojom::TextAnnotationPtr> annotations;
  for (auto const& annotate : annotate_result_) {
    annotations.emplace_back(annotate.Clone());
  }
  std::move(callback).Run(std::move(annotations));
}

void FakeServiceConnectionImpl::HandleFindLanguagesCall(
    std::string request,
    mojom::TextClassifier::FindLanguagesCallback callback) {
  std::vector<mojom::TextLanguagePtr> languages;
  for (auto const& language : find_languages_result_) {
    languages.emplace_back(language.Clone());
  }
  std::move(callback).Run(std::move(languages));
}

void FakeServiceConnectionImpl::SetOutputAnnotation(
    const std::vector<mojom::TextAnnotationPtr>& annotations) {
  annotate_result_.clear();
  for (auto const& annotate : annotations) {
    annotate_result_.emplace_back(annotate.Clone());
  }
}

void FakeServiceConnectionImpl::SetOutputLanguages(
    const std::vector<mojom::TextLanguagePtr>& languages) {
  find_languages_result_.clear();
  for (auto const& language : languages) {
    find_languages_result_.emplace_back(language.Clone());
  }
}

void FakeServiceConnectionImpl::SetOutputHandwritingRecognizerResult(
    const mojom::HandwritingRecognizerResultPtr& result) {
  handwriting_result_ = result.Clone();
}

void FakeServiceConnectionImpl::SetOutputWebPlatformHandwritingRecognizerResult(
    const std::vector<web_platform::mojom::HandwritingPredictionPtr>&
        predictions) {
  web_platform_handwriting_result_.clear();
  for (auto const& prediction : predictions) {
    web_platform_handwriting_result_.emplace_back(prediction.Clone());
  }
}

void FakeServiceConnectionImpl::SetOutputGrammarCheckerResult(
    const mojom::GrammarCheckerResultPtr& result) {
  grammar_checker_result_ = result.Clone();
}

void FakeServiceConnectionImpl::SetOutputTextSuggesterResult(
    const mojom::TextSuggesterResultPtr& result) {
  text_suggester_result_ = result.Clone();
}

void FakeServiceConnectionImpl::SetOutputDetectCornersResult(
    const mojom::DetectCornersResultPtr& result) {
  detect_corners_result_ = result.Clone();
}

void FakeServiceConnectionImpl::SetOutputDoPostProcessingResult(
    const mojom::DoPostProcessingResultPtr& result) {
  do_post_processing_result_ = result.Clone();
}

void FakeServiceConnectionImpl::Annotate(
    mojom::TextAnnotationRequestPtr request,
    mojom::TextClassifier::AnnotateCallback callback) {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleAnnotateCall,
                              base::Unretained(this), std::move(request),
                              std::move(callback)));
}

void FakeServiceConnectionImpl::FindLanguages(
    const std::string& text,
    mojom::TextClassifier::FindLanguagesCallback callback) {
  ScheduleCall(
      base::BindOnce(&FakeServiceConnectionImpl::HandleFindLanguagesCall,
                     base::Unretained(this), text, std::move(callback)));
}

void FakeServiceConnectionImpl::REMOVED_1(
    mojom::REMOVED_TextSuggestSelectionRequestPtr request,
    mojom::TextClassifier::REMOVED_1Callback callback) {
  NOTIMPLEMENTED();
}

void FakeServiceConnectionImpl::Recognize(
    mojom::HandwritingRecognitionQueryPtr query,
    mojom::HandwritingRecognizer::RecognizeCallback callback) {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleRecognizeCall,
                              base::Unretained(this), std::move(query),
                              std::move(callback)));
}

void FakeServiceConnectionImpl::GetPrediction(
    std::vector<web_platform::mojom::HandwritingStrokePtr> strokes,
    web_platform::mojom::HandwritingHintsPtr hints,
    web_platform::mojom::HandwritingRecognizer::GetPredictionCallback
        callback) {
  ScheduleCall(
      base::BindOnce(&FakeServiceConnectionImpl::HandleGetPredictionCall,
                     base::Unretained(this), std::move(strokes),
                     std::move(hints), std::move(callback)));
}

void FakeServiceConnectionImpl::Check(
    mojom::GrammarCheckerQueryPtr query,
    mojom::GrammarChecker::CheckCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleGrammarCheckerQueryCall,
      base::Unretained(this), std::move(query), std::move(callback)));
}
void FakeServiceConnectionImpl::HandleStopCall() {
  // Do something on the client
}

void FakeServiceConnectionImpl::HandleStartCall() {
  // Do something on the client.
}

void FakeServiceConnectionImpl::HandleMarkDoneCall() {
  HandleStopCall();
}

void FakeServiceConnectionImpl::AddAudio(const std::vector<uint8_t>& audio) {}
void FakeServiceConnectionImpl::Stop() {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleStopCall,
                              base::Unretained(this)));
}
void FakeServiceConnectionImpl::Start() {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleStartCall,
                              base::Unretained(this)));
}
void FakeServiceConnectionImpl::MarkDone() {
  ScheduleCall(base::BindOnce(&FakeServiceConnectionImpl::HandleMarkDoneCall,
                              base::Unretained(this)));
}

void FakeServiceConnectionImpl::Suggest(
    mojom::TextSuggesterQueryPtr query,
    mojom::TextSuggester::SuggestCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleTextSuggesterSuggestCall,
      base::Unretained(this), std::move(query), std::move(callback)));
}

void FakeServiceConnectionImpl::DetectCornersFromNV12Image(
    base::ReadOnlySharedMemoryRegion nv12_image,
    mojom::DocumentScanner::DetectCornersFromNV12ImageCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleDocumentScannerDetectNV12Call,
      base::Unretained(this), std::move(nv12_image), std::move(callback)));
}

void FakeServiceConnectionImpl::DetectCornersFromJPEGImage(
    base::ReadOnlySharedMemoryRegion jpeg_image,
    mojom::DocumentScanner::DetectCornersFromJPEGImageCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleDocumentScannerDetectJPEGCall,
      base::Unretained(this), std::move(jpeg_image), std::move(callback)));
}

void FakeServiceConnectionImpl::DoPostProcessing(
    base::ReadOnlySharedMemoryRegion jpeg_image,
    const std::vector<gfx::PointF>& corners,
    chromeos::machine_learning::mojom::Rotation rotation,
    mojom::DocumentScanner::DoPostProcessingCallback callback) {
  ScheduleCall(base::BindOnce(
      &FakeServiceConnectionImpl::HandleDocumentScannerPostProcessingCall,
      base::Unretained(this), std::move(jpeg_image), std::move(corners),
      std::move(callback)));
}

void FakeServiceConnectionImpl::HandleLoadHandwritingModelCall(
    mojo::PendingReceiver<mojom::HandwritingRecognizer> receiver,
    mojom::MachineLearningService::LoadHandwritingModelCallback callback) {
  if (load_handwriting_model_result_ == mojom::LoadHandwritingModelResult::OK)
    handwriting_receivers_.Add(this, std::move(receiver));
  std::move(callback).Run(load_handwriting_model_result_);
}

void FakeServiceConnectionImpl::HandleRecognizeCall(
    mojom::HandwritingRecognitionQueryPtr query,
    mojom::HandwritingRecognizer::RecognizeCallback callback) {
  std::move(callback).Run(handwriting_result_.Clone());
}

void FakeServiceConnectionImpl::HandleGetPredictionCall(
    std::vector<web_platform::mojom::HandwritingStrokePtr> strokes,
    web_platform::mojom::HandwritingHintsPtr hints,
    web_platform::mojom::HandwritingRecognizer::GetPredictionCallback
        callback) {
  std::vector<web_platform::mojom::HandwritingPredictionPtr> predictions;
  for (auto const& prediction : web_platform_handwriting_result_) {
    predictions.emplace_back(prediction.Clone());
  }
  std::move(callback).Run(std::move(predictions));
}

void FakeServiceConnectionImpl::HandleLoadGrammarCheckerCall(
    mojo::PendingReceiver<mojom::GrammarChecker> receiver,
    mojom::MachineLearningService::LoadGrammarCheckerCallback callback) {
  if (load_model_result_ == mojom::LoadModelResult::OK)
    grammar_checker_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_model_result_);
}

void FakeServiceConnectionImpl::HandleLoadSpeechRecognizerCall(
    mojo::PendingRemote<mojom::SodaClient> soda_client,
    mojo::PendingReceiver<mojom::SodaRecognizer> soda_recognizer,
    mojom::MachineLearningService::LoadSpeechRecognizerCallback callback) {
  if (load_soda_result_ == mojom::LoadModelResult::OK) {
    soda_recognizer_receivers_.Add(this, std::move(soda_recognizer));
    soda_client_remotes_.Add(std::move(soda_client));
  }
  std::move(callback).Run(load_soda_result_);
}

void FakeServiceConnectionImpl::HandleGrammarCheckerQueryCall(
    mojom::GrammarCheckerQueryPtr query,
    mojom::GrammarChecker::CheckCallback callback) {
  std::move(callback).Run(grammar_checker_result_.Clone());
}

void FakeServiceConnectionImpl::HandleLoadTextSuggesterCall(
    mojo::PendingReceiver<mojom::TextSuggester> receiver,
    mojom::TextSuggesterSpecPtr spec,
    mojom::MachineLearningService::LoadTextSuggesterCallback callback) {
  if (load_model_result_ == mojom::LoadModelResult::OK)
    text_suggester_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_model_result_);
}

void FakeServiceConnectionImpl::HandleTextSuggesterSuggestCall(
    mojom::TextSuggesterQueryPtr query,
    mojom::TextSuggester::SuggestCallback callback) {
  std::move(callback).Run(text_suggester_result_.Clone());
}

void FakeServiceConnectionImpl::HandleLoadDocumentScannerCall(
    mojo::PendingReceiver<mojom::DocumentScanner> receiver,
    mojom::MachineLearningService::LoadDocumentScannerCallback callback) {
  if (load_model_result_ == mojom::LoadModelResult::OK)
    document_scanner_receivers_.Add(this, std::move(receiver));

  std::move(callback).Run(load_model_result_);
}

void FakeServiceConnectionImpl::HandleDocumentScannerDetectNV12Call(
    base::ReadOnlySharedMemoryRegion nv12_image,
    mojom::DocumentScanner::DetectCornersFromNV12ImageCallback callback) {
  std::move(callback).Run(detect_corners_result_.Clone());
}

void FakeServiceConnectionImpl::HandleDocumentScannerDetectJPEGCall(
    base::ReadOnlySharedMemoryRegion jpeg_image,
    mojom::DocumentScanner::DetectCornersFromJPEGImageCallback callback) {
  std::move(callback).Run(detect_corners_result_.Clone());
}

void FakeServiceConnectionImpl::HandleDocumentScannerPostProcessingCall(
    base::ReadOnlySharedMemoryRegion jpeg_image,
    const std::vector<gfx::PointF>& corners,
    mojom::DocumentScanner::DoPostProcessingCallback callback) {
  std::move(callback).Run(do_post_processing_result_.Clone());
}

}  // namespace machine_learning
}  // namespace chromeos