Add missing using statements for JNI types.

components/variations/android/variations_associated_data_android.cc

 // 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.
 
 #include "components/variations/android/variations_associated_data_android.h"
 
 #include <string>
 
 #include "base/android/jni_string.h"
 #include "components/variations/variations_associated_data.h"
 #include "components/variations/variations_http_header_provider.h"
 #include "jni/VariationsAssociatedData_jni.h"
 
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
 
 namespace variations {
 
 namespace android {
 
 ScopedJavaLocalRef<jstring> GetVariationParamValue(
     JNIEnv* env,
     const JavaParamRef<jclass>& clazz,
     const JavaParamRef<jstring>& jtrial_name,
     const JavaParamRef<jstring>& jparam_name) {
@@ skipping 12 matching lines @@
   return ConvertUTF8ToJavaString(env, values);
 }
 
 bool RegisterVariationsAssociatedData(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android
 
 }  // namespace variations