Implement BluetoothGattNotifySession::Stop on Android, 2nd attempt

device/bluetooth/test/mock_bluetooth_gatt_notify_session.h

 // 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 DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_NOTIFY_SESSION_H_
 #define DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_NOTIFY_SESSION_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/timer/timer.h"
 #include "device/bluetooth/bluetooth_gatt_notify_session.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace device {
 
 class MockBluetoothAdapter;
 class MockBluetoothGattCharacteristic;
 
 class MockBluetoothGattNotifySession : public BluetoothGattNotifySession {
  public:
   explicit MockBluetoothGattNotifySession(
-      const std::string& characteristic_identifier);
+      base::WeakPtr<BluetoothRemoteGattCharacteristic> characteristic);
   virtual ~MockBluetoothGattNotifySession();
 
-  MOCK_CONST_METHOD0(GetCharacteristicIdentifier, std::string());
   MOCK_METHOD0(IsActive, bool());
   MOCK_METHOD1(Stop, void(const base::Closure&));
 
   // Starts notifying the adapter's observers that the characteristic's value
   // changed.
   // TODO(ortuno): Remove the following 3 functions. This is a temporary hack to
   // get layout tests working with Notifications.
   // http://crbug.com/543884
   void StartTestNotifications(MockBluetoothAdapter* adapter,
                               MockBluetoothGattCharacteristic* characteristic,
                               const std::vector<uint8_t>& value);
   void StopTestNotifications();
 
  private:
   void DoNotify(MockBluetoothAdapter* adapter,
                 MockBluetoothGattCharacteristic* characteristic,
                 const std::vector<uint8_t>& value);
 
   base::RepeatingTimer test_notifications_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(MockBluetoothGattNotifySession);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_NOTIFY_SESSION_H_