Shape Detection: use Google Play services Face detection where available

services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java

Index: services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java
diff --git a/services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java b/services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java
index 232102abdb941e4799272bfde4e725c21b2f6cb5..1826a34b5bf90481a33eb8eada4ea1d7c6d1eb37 100644
--- a/services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java
+++ b/services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionProviderImpl.java
@@ -6,6 +6,9 @@ package org.chromium.shape_detection;
 
 import android.content.Context;
 
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.GoogleApiAvailability;
+
 import org.chromium.mojo.bindings.InterfaceRequest;
 import org.chromium.mojo.system.MojoException;
 import org.chromium.services.service_manager.InterfaceFactory;
@@ -17,10 +20,24 @@ import org.chromium.shape_detection.mojom.FaceDetectorOptions;
  * Service provider to create FaceDetection services
  */
 public class FaceDetectionProviderImpl implements FaceDetectionProvider {
+    private final Context mContext;
+
+    public FaceDetectionProviderImpl(Context context) {
+        mContext = context;
+    }
+
     @Override
     public void createFaceDetection(
             InterfaceRequest<FaceDetection> request, FaceDetectorOptions options) {
-        FaceDetection.MANAGER.bind(new FaceDetectionImpl(options), request);
+        final boolean isGmsCoreSupported =
+                GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(mContext)
+                == ConnectionResult.SUCCESS;
+
+        if (isGmsCoreSupported) {
+            FaceDetection.MANAGER.bind(new FaceDetectionImplGmsCore(mContext, options), request);
+        } else {
+            FaceDetection.MANAGER.bind(new FaceDetectionImpl(options), request);
+        }
     }
 
     @Override
@@ -33,11 +50,15 @@ public class FaceDetectionProviderImpl implements FaceDetectionProvider {
      * A factory class to register FaceDetectionProvider interface.
      */
     public static class Factory implements InterfaceFactory<FaceDetectionProvider> {
-        public Factory(Context context) {}
+        private final Context mContext;
+
+        public Factory(Context context) {
+            mContext = context;
+        }
 
         @Override
         public FaceDetectionProvider createImpl() {
-            return new FaceDetectionProviderImpl();
+            return new FaceDetectionProviderImpl(mContext);
         }
     }
 }