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diff --git a/ash/system/chromeos/bluetooth/bluetooth_notification_controller.h b/ash/system/chromeos/bluetooth/bluetooth_notification_controller.h
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+++ b/ash/system/chromeos/bluetooth/bluetooth_notification_controller.h
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+// 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.
+
+#ifndef ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_
+#define ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_
+
+#include <set>
+
+#include "ash/ash_export.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
+#include "device/bluetooth/bluetooth_adapter.h"
+#include "device/bluetooth/bluetooth_device.h"
+
+namespace ash {
+namespace internal {
+
+// The BluetoothNotificationController receives incoming pairing requests from
+// the BluetoothAdapter, and notifications of changes to the adapter state and
+// set of paired devices. It presents incoming pairing requests in the form of
+// rich notifications that the user can interact with to approve the request.
+class ASH_EXPORT BluetoothNotificationController
+    : public device::BluetoothAdapter::Observer,
+      public device::BluetoothDevice::PairingDelegate {
+ public:
+  BluetoothNotificationController();
+  virtual ~BluetoothNotificationController();
+
+  // device::BluetoothAdapter::Observer override.
+  virtual void DeviceAdded(device::BluetoothAdapter* adapter,
+                           device::BluetoothDevice* device) OVERRIDE;
+  virtual void DeviceChanged(device::BluetoothAdapter* adapter,
+                             device::BluetoothDevice* device) OVERRIDE;
+  virtual void DeviceRemoved(device::BluetoothAdapter* adapter,
+                             device::BluetoothDevice* device) OVERRIDE;
+
+  // device::BluetoothDevice::PairingDelegate override.
+  virtual void RequestPinCode(device::BluetoothDevice* device) OVERRIDE;
+  virtual void RequestPasskey(device::BluetoothDevice* device) OVERRIDE;
+  virtual void DisplayPinCode(device::BluetoothDevice* device,
+                              const std::string& pincode) OVERRIDE;
+  virtual void DisplayPasskey(device::BluetoothDevice* device,
+                              uint32 passkey) OVERRIDE;
+  virtual void KeysEntered(device::BluetoothDevice* device,
+                           uint32 entered) OVERRIDE;
+  virtual void ConfirmPasskey(device::BluetoothDevice* device,
+                              uint32 passkey) OVERRIDE;
+  virtual void AuthorizePairing(device::BluetoothDevice* device) OVERRIDE;
+
+ private:
+  // Internal method called by BluetoothAdapterFactory to provide the adapter
+  // object.
+  void OnGetAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
+
+  // Presents a notification to the user that a device |device| is making a
+  // pairing request. The exact message to display is given in |message| and
+  // should include all relevant instructions, if |with_buttons| is true then
+  // the notification will have Accept and Reject buttons, if false only the
+  // usual cancel/dismiss button will be present on the notification.
+  void NotifyPairing(device::BluetoothDevice* device,
+                     const base::string16& message,
+                     bool with_buttons);
+
+  // Clears any shown pairing notification now that the device has been paired.
+  void NotifyPairedDevice(device::BluetoothDevice* device);
+
+  // Reference to the underlying BluetoothAdapter object, holding this reference
+  // ensures we stay around as the pairing delegate for that adapter.
+  scoped_refptr<device::BluetoothAdapter> adapter_;
+
+  // Set of currently paired devices, stored by Bluetooth address, used to
+  // filter out property changes for devices that were previously paired.
+  std::set<std::string> paired_devices_;
+
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothNotificationController> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothNotificationController);
+};
+
+}  // namespace internal
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_