Stop relying on using statements in the JNI generator.

base/android/jni_generator/testNativesLong.golden

 // 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.
 
 // This file is autogenerated by
 //     base/android/jni_generator/jni_generator.py
 // For
 //     org/chromium/TestJni
 
 #ifndef org_chromium_TestJni_JNI
@@ skipping 15 matching lines @@
 }  // namespace
 
 // Step 2: method stubs.
 extern "C" __attribute__((visibility("default")))
 void Java_org_chromium_TestJni_nativeDestroy(JNIEnv* env,
     jobject jcaller,
     jlong nativeChromeBrowserProvider) {
   ChromeBrowserProvider* native =
       reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
   CHECK_NATIVE_PTR(env, jcaller, native, "Destroy");
-  return native->Destroy(env, JavaParamRef<jobject>(env, jcaller));
+  return native->Destroy(env, base::android::JavaParamRef<jobject>(env,
+      jcaller));
 }
 
 // Step 3: RegisterNatives.
 
 static const JNINativeMethod kMethodsTestJni[] = {
     { "nativeDestroy",
 "("
 "J"
 ")"
 "V", reinterpret_cast<void*>(Java_org_chromium_TestJni_nativeDestroy) },
 };
 
 static bool RegisterNativesImpl(JNIEnv* env) {
   if (base::android::IsManualJniRegistrationDisabled()) return true;
 
   const int kMethodsTestJniSize = arraysize(kMethodsTestJni);
 
   if (env->RegisterNatives(TestJni_clazz(env),
                            kMethodsTestJni,
                            kMethodsTestJniSize) < 0) {
     jni_generator::HandleRegistrationError(
         env, TestJni_clazz(env), __FILE__);
     return false;
   }
 
   return true;
 }
 
 #endif  // org_chromium_TestJni_JNI