bluetooth: mac: Improve classic device discovery and update

device/bluetooth/bluetooth_device.cc

 // Copyright (c) 2012 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_device.h"
 
 #include <iterator>
 #include <memory>
 #include <string>
 
@@ skipping 461 matching lines @@
 void BluetoothDevice::Pair(PairingDelegate* pairing_delegate,
                            const base::Closure& callback,
                            const ConnectErrorCallback& error_callback) {
   NOTREACHED();
 }
 
 void BluetoothDevice::UpdateTimestamp() {
   last_update_time_ = base::Time::NowFromSystemTime();
 }
 
+base::Time BluetoothDevice::GetLastUpdateTime() const {
+  return last_update_time_;
+}
+
 // static
 int8_t BluetoothDevice::ClampPower(int power) {
   if (power < INT8_MIN) {
     return INT8_MIN;
   }
   if (power > INT8_MAX) {
     return INT8_MAX;
   }
   return static_cast<int8_t>(power);
 }
 
 }  // namespace device