Revert of Shape Detection: Implement FaceDetection on Mac as out-of-process service

services/shape_detection/face_detection_impl_mac.h

-// Copyright 2017 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.
-
-#ifndef SERVICES_SHAPE_DETECTION_FACE_DETECTION_IMPL_MAC_H_
-#define SERVICES_SHAPE_DETECTION_FACE_DETECTION_IMPL_MAC_H_
-
-#import <QuartzCore/QuartzCore.h>
-
-#include "base/mac/scoped_nsobject.h"
-#include "services/shape_detection/public/interfaces/facedetection.mojom.h"
-
-namespace shape_detection {
-
-class FaceDetectionImplMac : public shape_detection::mojom::FaceDetection {
- public:
-  FaceDetectionImplMac(shape_detection::mojom::FaceDetectorOptionsPtr options);
-  ~FaceDetectionImplMac() override;
-
-  void Detect(mojo::ScopedSharedBufferHandle frame_data,
-              uint32_t width,
-              uint32_t height,
-              const shape_detection::mojom::FaceDetection::DetectCallback&
-                  callback) override;
-
- private:
-  base::scoped_nsobject<CIContext> context_;
-  base::scoped_nsobject<CIDetector> detector_;
-
-  DISALLOW_COPY_AND_ASSIGN(FaceDetectionImplMac);
-};
-
-}  // namespace shape_detection
-
-#endif  // SERVICES_SHAPE_DETECTION_FACE_DETECTION_IMPL_MAC_H_