Add missing using statements for JNI types.

device/bluetooth/bluetooth_device_android.cc

 // Copyright 2015 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.
 
 #include "device/bluetooth/bluetooth_device_android.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/stringprintf.h"
 #include "device/bluetooth/bluetooth_adapter_android.h"
 #include "device/bluetooth/bluetooth_remote_gatt_service_android.h"
 #include "jni/ChromeBluetoothDevice_jni.h"
 
 using base::android::AttachCurrentThread;
 using base::android::AppendJavaStringArrayToStringVector;
+using base::android::JavaParamRef;
 
 namespace device {
 namespace {
 void RecordConnectionSuccessResult(int32_t status) {
   UMA_HISTOGRAM_SPARSE_SLOWLY("Bluetooth.Android.GATTConnection.Success.Result",
                               status);
 }
 void RecordConnectionFailureResult(int32_t status) {
   UMA_HISTOGRAM_SPARSE_SLOWLY("Bluetooth.Android.GATTConnection.Failure.Result",
                               status);
@@ skipping 264 matching lines @@
       AttachCurrentThread(), j_device_.obj(),
       base::android::GetApplicationContext());
 }
 
 void BluetoothDeviceAndroid::DisconnectGatt() {
   Java_ChromeBluetoothDevice_disconnectGatt(AttachCurrentThread(),
                                             j_device_.obj());
 }
 
 }  // namespace device