Add missing using declarations in cronet code.

components/cronet/android/test/native_test_server.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/cronet/android/test/native_test_server.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 14 matching lines @@
 #include "jni/NativeTestServer_jni.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/url_util.h"
 #include "net/http/http_status_code.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "net/test/embedded_test_server/http_request.h"
 #include "net/test/embedded_test_server/http_response.h"
 #include "net/test/embedded_test_server/request_handler_util.h"
 #include "url/gurl.h"
 
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
+
 namespace cronet {
 
 namespace {
 
 const char kEchoBodyPath[] = "/echo_body";
 const char kEchoHeaderPath[] = "/echo_header";
 const char kEchoAllHeadersPath[] = "/echo_all_headers";
 const char kEchoMethodPath[] = "/echo_method";
 const char kRedirectToEchoBodyPath[] = "/redirect_to_echo_body";
 const char kExabyteResponsePath[] = "/exabyte_response";
@@ skipping 276 matching lines @@
 #else
   return JNI_FALSE;
 #endif
 }
 
 bool RegisterNativeTestServer(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace cronet