jni_generator: Pass object parameters as JavaParamRef.

chrome/browser/invalidation/invalidation_service_factory_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 "chrome/browser/invalidation/invalidation_service_factory_android.h"
 
 #include "base/android/jni_android.h"
 #include "chrome/browser/invalidation/profile_invalidation_provider_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_android.h"
@@ skipping 20 matching lines @@
 
 ScopedJavaLocalRef<jobject> InvalidationServiceFactoryAndroid::GetForTest(
     JNIEnv* env,
     jclass clazz,
     jobject j_context) {
   InvalidationServiceAndroid* service_android =
       new InvalidationServiceAndroid(j_context);
   return ScopedJavaLocalRef<jobject>(service_android->java_ref_);
 }
 
-ScopedJavaLocalRef<jobject> GetForProfile(JNIEnv* env,
-                                          jclass clazz,
-                                          jobject j_profile) {
+ScopedJavaLocalRef<jobject> GetForProfile(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jobject>& j_profile) {
   return InvalidationServiceFactoryAndroid::GetForProfile(env, clazz,
                                                           j_profile);
 }
 
 ScopedJavaLocalRef<jobject> GetForTest(JNIEnv* env,
-                                       jclass clazz,
-                                       jobject j_context) {
+                                       const JavaParamRef<jclass>& clazz,
+                                       const JavaParamRef<jobject>& j_context) {
   return InvalidationServiceFactoryAndroid::GetForTest(env, clazz, j_context);
 }
 
 bool InvalidationServiceFactoryAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace invalidation