bluetooth: Add adapter page to internals page.

device/bluetooth/adapter.h

 // Copyright 2016 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_ADAPTER_H_
 #define DEVICE_BLUETOOTH_ADAPTER_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 19 matching lines @@
   // mojom::Adapter overrides:
   void ConnectToDevice(const std::string& address,
                        const ConnectToDeviceCallback& callback) override;
   void GetDevices(const GetDevicesCallback& callback) override;
   void GetInfo(const GetInfoCallback& callback) override;
   void SetClient(mojom::AdapterClientPtr client) override;
   void StartDiscoverySession(
       const StartDiscoverySessionCallback& callback) override;
 
   // device::BluetoothAdapter::Observer overrides:
+  void AdapterPresentChanged(device::BluetoothAdapter* adapter,
+                             bool present) override;
+  void AdapterPoweredChanged(device::BluetoothAdapter* adapter,
+                             bool powered) override;
+  void AdapterDiscoverableChanged(device::BluetoothAdapter* adapter,
+                                  bool discoverable) override;
   void AdapterDiscoveringChanged(device::BluetoothAdapter* adapter,
                                  bool discovering) override;
   void DeviceAdded(device::BluetoothAdapter* adapter,
                    device::BluetoothDevice* device) override;
   void DeviceChanged(device::BluetoothAdapter* adapter,
                      device::BluetoothDevice* device) override;
   void DeviceRemoved(device::BluetoothAdapter* adapter,
                      device::BluetoothDevice* device) override;
 
  private:
@@ skipping 17 matching lines @@
   mojom::AdapterClientPtr client_;
 
   base::WeakPtrFactory<Adapter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Adapter);
 };
 
 }  // namespace bluetooth
 
 #endif  // DEVICE_BLUETOOTH_ADAPTER_H_