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

third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp

Index: third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp
diff --git a/third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp b/third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp
index 060c66f89195f31b31daa50b731e2c50532e69a7..3854249842f34f5f83dff1ad92359985f2b76434 100644
--- a/third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp
+++ b/third_party/WebKit/Source/modules/shapedetection/FaceDetector.cpp
@@ -11,8 +11,10 @@
 #include "core/html/canvas/CanvasImageSource.h"
 #include "modules/shapedetection/DetectedFace.h"
 #include "modules/shapedetection/FaceDetectorOptions.h"
+#include "platform/ServiceConnector.h"
 #include "public/platform/InterfaceProvider.h"
 #include "public/platform/modules/shapedetection/facedetection_provider.mojom-blink.h"
+#include "services/shape_detection/public/interfaces/constants.mojom-blink.h"
 
 namespace blink {
 
@@ -29,10 +31,16 @@ FaceDetector::FaceDetector(LocalFrame& frame,
   faceDetectorOptions->max_detected_faces = options.maxDetectedFaces();
   faceDetectorOptions->fast_mode = options.fastMode();
   mojom::blink::FaceDetectionProviderPtr provider;
+#if OS(MACOSX)
+  ServiceConnector::instance().connectToInterface(
+      shape_detection::mojom::blink::kServiceName,
+      mojo::MakeRequest(&provider));
+#else
+  // TODO(xianglu): Move Android implementation to service/ as well.
   frame.interfaceProvider()->getInterface(mojo::MakeRequest(&provider));
+#endif
   provider->CreateFaceDetection(mojo::MakeRequest(&m_faceService),
                                 std::move(faceDetectorOptions));
-
   m_faceService.set_connection_error_handler(convertToBaseCallback(WTF::bind(
       &FaceDetector::onFaceServiceConnectionError, wrapWeakPersistent(this))));
 }