Move //device/sensor impl to be part of the internal implemenation of the Device Service.

services/device/sensors/ambient_light_mac.h

Index: services/device/sensors/ambient_light_mac.h
diff --git a/device/sensors/ambient_light_mac.h b/services/device/sensors/ambient_light_mac.h
similarity index 85%
rename from device/sensors/ambient_light_mac.h
rename to services/device/sensors/ambient_light_mac.h
index f777dbc743ef2e394ff15a4d368e2be57290ce27..bf4ef425a3c9475740e4d28ef4e45936c840bab2 100644
--- a/device/sensors/ambient_light_mac.h
+++ b/services/device/sensors/ambient_light_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
-#define DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
+#ifndef SERVICE_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
+#define SERVICE_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
 
 #include <IOKit/IOKitLib.h>
 #include <stdint.h>
@@ -40,4 +40,4 @@ class AmbientLightSensor {
 
 }  // namespace device
 
-#endif  // DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_
+#endif  // SERVICE_DEVICE_SENSORS_AMBIENT_LIGHT_MAC_H_