[EasyUnlock] Observe proximity changes and clean up TX power strategy.

components/proximity_auth/unlock_manager_impl.h

 // 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.
 
 #ifndef COMPONENTS_PROXIMITY_AUTH_UNLOCK_MANAGER_IMPL_H
 #define COMPONENTS_PROXIMITY_AUTH_UNLOCK_MANAGER_IMPL_H
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
 #include "components/proximity_auth/messenger_observer.h"
 #include "components/proximity_auth/proximity_auth_system.h"
+#include "components/proximity_auth/proximity_monitor_observer.h"
 #include "components/proximity_auth/remote_device_life_cycle.h"
 #include "components/proximity_auth/remote_status_update.h"
 #include "components/proximity_auth/screenlock_bridge.h"
 #include "components/proximity_auth/screenlock_state.h"
 #include "components/proximity_auth/unlock_manager.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/dbus/power_manager_client.h"
 #endif
 
 namespace proximity_auth {
 
 class Messenger;
 class ProximityAuthClient;
 class ProximityMonitor;
 
 // The unlock manager is responsible for controlling the lock screen UI based on
 // the authentication status of the registered remote devices.
 class UnlockManagerImpl : public UnlockManager,
                           public MessengerObserver,
+                          public ProximityMonitorObserver,
                           public ScreenlockBridge::Observer,
 #if defined(OS_CHROMEOS)
                           chromeos::PowerManagerClient::Observer,
 #endif  // defined(OS_CHROMEOS)
                           public device::BluetoothAdapter::Observer {
  public:
   // The |proximity_auth_client| is not owned and should outlive the constructed
   // unlock manager.
   UnlockManagerImpl(ProximityAuthSystem::ScreenlockType screenlock_type,
                     ProximityAuthClient* proximity_auth_client);
@@ skipping 21 matching lines @@
     LOCKED,
   };
 
   // MessengerObserver:
   void OnUnlockEventSent(bool success) override;
   void OnRemoteStatusUpdate(const RemoteStatusUpdate& status_update) override;
   void OnDecryptResponse(const std::string& decrypted_bytes) override;
   void OnUnlockResponse(bool success) override;
   void OnDisconnected() override;
 
+  // ProximityMonitorObserver:
+  void OnProximityStateChanged() override;
+
   // ScreenlockBridge::Observer
   void OnScreenDidLock(
       ScreenlockBridge::LockHandler::ScreenType screen_type) override;
   void OnScreenDidUnlock(
       ScreenlockBridge::LockHandler::ScreenType screen_type) override;
   void OnFocusedUserChanged(const AccountId& account_id) override;
 
   // Called when the screenlock state changes.
   void OnScreenLockedOrUnlocked(bool is_locked);
 
@@ skipping 97 matching lines @@
 
   // Used to vend all other weak pointers.
   base::WeakPtrFactory<UnlockManagerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UnlockManagerImpl);
 };
 
 }  // namespace proximity_auth
 
 #endif  // COMPONENTS_PROXIMITY_AUTH_UNLOCK_MANAGER_IMPL_H