Open IOHIDDevices on the FILE thread

device/hid/hid_connection_mac.cc

Index: device/hid/hid_connection_mac.cc
diff --git a/device/hid/hid_connection_mac.cc b/device/hid/hid_connection_mac.cc
index 4aa4a8f3c5bb565098edb2e7bf8e0c06c56fa3ca..7e46b204926d779ecba0cfdc8691ebb70847bf0d 100644
--- a/device/hid/hid_connection_mac.cc
+++ b/device/hid/hid_connection_mac.cc
@@ -25,11 +25,11 @@ std::string HexErrorCode(IOReturn error_code) {
 }  // namespace
 
 HidConnectionMac::HidConnectionMac(
-    IOHIDDeviceRef device,
+    base::ScopedCFTypeRef<IOHIDDeviceRef> device,
     scoped_refptr<HidDeviceInfo> device_info,
     scoped_refptr<base::SingleThreadTaskRunner> file_task_runner)
     : HidConnection(device_info),
-      device_(device, base::scoped_policy::RETAIN),
+      device_(std::move(device)),
       file_task_runner_(file_task_runner) {
   task_runner_ = base::ThreadTaskRunnerHandle::Get();
   DCHECK(task_runner_.get());