[Device Service] Add ACCELEROMETER implementation on Mac to //device/generic_sensor

device/generic_sensor/platform_sensor_provider_mac.cc

Index: device/generic_sensor/platform_sensor_provider_mac.cc
diff --git a/device/generic_sensor/platform_sensor_provider_mac.cc b/device/generic_sensor/platform_sensor_provider_mac.cc
index 77b458933663ac6940601dc56f901d142390e6ea..1d5887fc33dcc7d6fd0590e1210ac58c215b2cb2 100644
--- a/device/generic_sensor/platform_sensor_provider_mac.cc
+++ b/device/generic_sensor/platform_sensor_provider_mac.cc
@@ -5,6 +5,7 @@
 #include "device/generic_sensor/platform_sensor_provider_mac.h"
 
 #include "base/memory/singleton.h"
+#include "device/generic_sensor/platform_sensor_accelerometer_mac.h"
 #include "device/generic_sensor/platform_sensor_ambient_light_mac.h"
 
 namespace device {
@@ -32,6 +33,11 @@ void PlatformSensorProviderMac::CreateSensorInternal(
       callback.Run(std::move(sensor));
       break;
     }
+    case mojom::SensorType::ACCELEROMETER: {
+      callback.Run(base::MakeShared<PlatformSensorAccelerometerMac>(
+          std::move(mapping), this));
+      break;
+    }
     default:
       NOTIMPLEMENTED();
       callback.Run(nullptr);