Bluetooth: mac: add connected BLE devices at startup

device/bluetooth/bluetooth_low_energy_device_mac.mm

 // Copyright 2015 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.
 
 #include "device/bluetooth/bluetooth_low_energy_device_mac.h"
 
 #import <CoreFoundation/CoreFoundation.h>
 #include <stddef.h>
 
 #include "base/mac/mac_util.h"
@@ skipping 17 matching lines @@
     int rssi)
     : BluetoothDeviceMac(adapter),
       peripheral_(peripheral, base::scoped_policy::RETAIN) {
   DCHECK(BluetoothAdapterMac::IsLowEnergyAvailable());
   DCHECK(peripheral_.get());
   peripheral_delegate_.reset([[BluetoothLowEnergyPeripheralDelegate alloc]
       initWithBluetoothLowEnergyDeviceMac:this]);
   [peripheral_ setDelegate:peripheral_delegate_];
   identifier_ = GetPeripheralIdentifier(peripheral);
   hash_address_ = GetPeripheralHashAddress(peripheral);
-  Update(advertisement_data, rssi);
+
+  if (advertisement_data)
+    Update(advertisement_data, rssi);
+  else
+    UpdateTimestamp();
 }
 
 BluetoothLowEnergyDeviceMac::~BluetoothLowEnergyDeviceMac() {
   if (IsGattConnected()) {
     GetMacAdapter()->DisconnectGatt(this);
   }
 }
 
 void BluetoothLowEnergyDeviceMac::Update(NSDictionary* advertisement_data,
                                          int rssi) {
@@ skipping 336 matching lines @@
   GattServiceMap gatt_services_swapped;
   gatt_services_swapped.swap(gatt_services_);
   gatt_services_swapped.clear();
   if (create_gatt_connection_error_callbacks_.empty()) {
     // TODO(http://crbug.com/585897): Need to pass the error.
     DidDisconnectGatt();
   } else {
     DidFailToConnectGatt(error_code);
   }
 }