Add missing using statements for JNI types.

net/android/gurl_utils.cc

 // Copyright (c) 2012 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 "net/android/gurl_utils.h"
 
 #include "base/android/jni_string.h"
 #include "jni/GURLUtils_jni.h"
 #include "url/gurl.h"
 
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
+
 namespace net {
 
 ScopedJavaLocalRef<jstring> GetOrigin(JNIEnv* env,
                                       const JavaParamRef<jclass>& clazz,
                                       const JavaParamRef<jstring>& url) {
   GURL host(base::android::ConvertJavaStringToUTF16(env, url));
 
   return base::android::ConvertUTF8ToJavaString(env, host.GetOrigin().spec());
 }
 
 ScopedJavaLocalRef<jstring> GetScheme(JNIEnv* env,
                                       const JavaParamRef<jclass>& clazz,
                                       const JavaParamRef<jstring>& url) {
   GURL host(base::android::ConvertJavaStringToUTF16(env, url));
 
   return base::android::ConvertUTF8ToJavaString(env, host.scheme());
 }
 
 bool RegisterGURLUtils(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // net namespace