Extract device_sensors to /device via Mojofication

device/device_sensors/ambient_light_mac.cc

Index: device/device_sensors/ambient_light_mac.cc
diff --git a/content/browser/device_sensors/ambient_light_mac.cc b/device/device_sensors/ambient_light_mac.cc
similarity index 96%
rename from content/browser/device_sensors/ambient_light_mac.cc
rename to device/device_sensors/ambient_light_mac.cc
index 187f6a0697d21c93312b079c5448a832f91ff085..6ff363d7d167fdb6ee2514386b289a0c5ef55649 100644
--- a/content/browser/device_sensors/ambient_light_mac.cc
+++ b/device/device_sensors/ambient_light_mac.cc
@@ -4,12 +4,12 @@
 
 // This file is based on http://osxbook.com/book/bonus/chapter10/light/
 
-#include "content/browser/device_sensors/ambient_light_mac.h"
+#include "device/device_sensors/ambient_light_mac.h"
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_ioobject.h"
 
-namespace content {
+namespace device {
 
 namespace {
 enum LmuFunctionIndex {
@@ -75,4 +75,4 @@ bool AmbientLightSensor::ReadSensorValue(uint64_t lux_values[2]) {
   return kr == KERN_SUCCESS;
 }
 
-}  // namespace content
+}  // namespace device