Implement read & write remote GATT characteristic value for Windows

device/bluetooth/bluetooth_remote_gatt_characteristic_win.h

Index: device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
diff --git a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
index 98601163ccbe35051dbf82cc3b048456019ea4be..190e8922fdc09cb018f24169b26a231f3d945b82 100644
--- a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
+++ b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.h
@@ -75,6 +75,12 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicWin
                                   uint16_t num,
                                   BluetoothRemoteGattDescriptorWin* descriptor);
 
+  void OnReadRemoteCharacteristicValueCallback(
+      scoped_ptr<BTH_LE_GATT_CHARACTERISTIC_VALUE> value,
+      HRESULT hr);
+  void OnWriteRemoteCharacteristicValueCallback(HRESULT hr);
+  BluetoothGattService::GattErrorCode HRESULTToGattErrorCode(HRESULT hr);
+
   BluetoothRemoteGattServiceWin* parent_service_;
   scoped_refptr<BluetoothTaskManagerWin> task_manager_;
 
@@ -96,6 +102,14 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicWin
   // has been sent out to avoid duplicate notification.
   bool characteristic_added_notified_;
 
+  // Vector stores ReadRemoteCharacteristic request callbacks.
+  std::vector<std::pair<ValueCallback, ErrorCallback>>
+      read_remote_characteristic_value_callbacks_;
+
+  // Vector stores WriteRemoteCharacteristic request callbacks.
+  std::vector<std::pair<base::Closure, ErrorCallback>>
+      write_remote_characteristic_value_callbacks_;
+
   base::WeakPtrFactory<BluetoothRemoteGattCharacteristicWin> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattCharacteristicWin);
 };