[CrOS Tether] Make BluetoothThrottler a singleton which can be easily shared between EasyUnlock and…

components/proximity_auth/remote_device_life_cycle_impl.cc

 // 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 "components/proximity_auth/remote_device_life_cycle_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 30 matching lines @@
 
 }  // namespace
 
 RemoteDeviceLifeCycleImpl::RemoteDeviceLifeCycleImpl(
     const cryptauth::RemoteDevice& remote_device,
     ProximityAuthClient* proximity_auth_client)
     : remote_device_(remote_device),
       proximity_auth_client_(proximity_auth_client),
       state_(RemoteDeviceLifeCycle::State::STOPPED),
       observers_(base::ObserverList<Observer>::NOTIFY_EXISTING_ONLY),
-      bluetooth_throttler_(new cryptauth::BluetoothThrottlerImpl(
-          base::WrapUnique(new base::DefaultTickClock()))),
+      bluetooth_throttler_(cryptauth::BluetoothThrottlerImpl::GetInstance()),
       weak_ptr_factory_(this) {}
 
 RemoteDeviceLifeCycleImpl::~RemoteDeviceLifeCycleImpl() {}
 
 void RemoteDeviceLifeCycleImpl::Start() {
   PA_LOG(INFO) << "Life cycle for " << remote_device_.bluetooth_address
                << " started.";
   DCHECK(state_ == RemoteDeviceLifeCycle::State::STOPPED);
   FindConnection();
 }
@@ skipping 17 matching lines @@
 void RemoteDeviceLifeCycleImpl::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 std::unique_ptr<cryptauth::ConnectionFinder>
 RemoteDeviceLifeCycleImpl::CreateConnectionFinder() {
   if (remote_device_.bluetooth_address.empty()) {
     return base::MakeUnique<BluetoothLowEnergyConnectionFinder>(
         remote_device_, kBLESmartLockServiceUUID,
         BluetoothLowEnergyConnectionFinder::FinderStrategy::FIND_PAIRED_DEVICE,
-        nullptr, bluetooth_throttler_.get(), 3);
+        nullptr, bluetooth_throttler_, 3);
   } else {
     return base::MakeUnique<BluetoothConnectionFinder>(
         remote_device_, device::BluetoothUUID(kClassicBluetoothServiceUUID),
         base::TimeDelta::FromSeconds(3));
   }
 }
 
 std::unique_ptr<cryptauth::Authenticator>
 RemoteDeviceLifeCycleImpl::CreateAuthenticator() {
   return base::MakeUnique<cryptauth::DeviceToDeviceAuthenticator>(
@@ skipping 66 matching lines @@
   TransitionToState(RemoteDeviceLifeCycle::State::SECURE_CHANNEL_ESTABLISHED);
 }
 
 void RemoteDeviceLifeCycleImpl::OnDisconnected() {
   DCHECK(state_ == RemoteDeviceLifeCycle::State::SECURE_CHANNEL_ESTABLISHED);
   messenger_.reset();
   FindConnection();
 }
 
 }  // namespace proximity_auth