bluetooth: Create base class BluetoothDevice::CreateGattConnection impl.

device/bluetooth/bluetooth_device_chromeos.cc

Index: device/bluetooth/bluetooth_device_chromeos.cc
diff --git a/device/bluetooth/bluetooth_device_chromeos.cc b/device/bluetooth/bluetooth_device_chromeos.cc
index 2fcb1e6715fffadaa766e9a6bdad23443cfe1130..62be52a245ca09967012be9cc82886ab48260a70 100644
--- a/device/bluetooth/bluetooth_device_chromeos.cc
+++ b/device/bluetooth/bluetooth_device_chromeos.cc
@@ -178,6 +178,18 @@ std::string BluetoothDeviceChromeOS::GetDeviceName() const {
   return properties->alias.value();
 }
 
+void BluetoothDeviceChromeOS::CreateGattConnectionImpl() {
+  // ChromeOS implementation does not use the default CreateGattConnection
+  // implementation.
+  NOTIMPLEMENTED();
+}
+
+void BluetoothDeviceChromeOS::DisconnectGatt() {
+  // ChromeOS implementation does not use the default CreateGattConnection
+  // implementation.
+  NOTIMPLEMENTED();
+}
+
 std::string BluetoothDeviceChromeOS::GetAddress() const {
   BluetoothDeviceClient::Properties* properties =
       DBusThreadManager::Get()->GetBluetoothDeviceClient()->
@@ -233,6 +245,11 @@ bool BluetoothDeviceChromeOS::IsConnected() const {
   return properties->connected.value();
 }
 
+bool BluetoothDeviceChromeOS::IsGattConnected() const {
+  NOTIMPLEMENTED();
+  return false;
+}
+
 bool BluetoothDeviceChromeOS::IsConnectable() const {
   BluetoothInputClient::Properties* input_properties =
       DBusThreadManager::Get()->GetBluetoothInputClient()->