Added bluetooth LE support on Mac platform

device/bluetooth/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//tools/grit/grit_rule.gni")
 
 config("bluetooth_config") {
   if (is_win) {
     ldflags = [
       "/DELAYLOAD:BluetoothApis.dll",
@@ skipping 51 matching lines @@
     "bluetooth_gatt_notify_session_chromeos.cc",
     "bluetooth_gatt_notify_session_chromeos.h",
     "bluetooth_gatt_service.cc",
     "bluetooth_gatt_service.h",
     "bluetooth_init_win.cc",
     "bluetooth_init_win.h",
     "bluetooth_l2cap_channel_mac.mm",
     "bluetooth_l2cap_channel_mac.h",
     "bluetooth_low_energy_defs_win.cc",
     "bluetooth_low_energy_defs_win.h",
+    "bluetooth_low_energy_device_mac.h",
+    "bluetooth_low_energy_device_mac.mm",
+    "bluetooth_low_energy_discovery_manager_mac.h",
+    "bluetooth_low_energy_discovery_manager_mac.mm",
     "bluetooth_low_energy_win.cc",
     "bluetooth_low_energy_win.h",
     "bluetooth_pairing_chromeos.cc",
     "bluetooth_pairing_chromeos.h",
     "bluetooth_remote_gatt_characteristic_chromeos.cc",
     "bluetooth_remote_gatt_characteristic_chromeos.h",
     "bluetooth_remote_gatt_descriptor_chromeos.cc",
     "bluetooth_remote_gatt_descriptor_chromeos.h",
     "bluetooth_remote_gatt_service_chromeos.cc",
     "bluetooth_remote_gatt_service_chromeos.h",
@@ skipping 124 matching lines @@
     "test/mock_bluetooth_gatt_service.h",
     "test/mock_bluetooth_socket.cc",
     "test/mock_bluetooth_socket.h",
   ]
 
   deps = [
     ":bluetooth",
     "//testing/gmock",
   ]
 }