jni_generator: Pass object parameters as JavaParamRef.

sync/test/fake_server/android/fake_server_helper_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 "sync/test/fake_server/android/fake_server_helper_android.h"
 
 #include <jni.h>
 
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
@@ skipping 12 matching lines @@
 #include "sync/test/fake_server/tombstone_entity.h"
 #include "sync/test/fake_server/unique_client_entity.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 FakeServerHelperAndroid::FakeServerHelperAndroid(JNIEnv* env, jobject obj) {
 }
 
 FakeServerHelperAndroid::~FakeServerHelperAndroid() { }
 
-static jlong Init(JNIEnv* env, jobject obj) {
+static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   FakeServerHelperAndroid* fake_server_android =
       new FakeServerHelperAndroid(env, obj);
   return reinterpret_cast<intptr_t>(fake_server_android);
 }
 
 jlong FakeServerHelperAndroid::CreateFakeServer(JNIEnv* env, jobject obj) {
   fake_server::FakeServer* fake_server = new fake_server::FakeServer();
   return reinterpret_cast<intptr_t>(fake_server);
 }
 
@@ skipping 247 matching lines @@
       reinterpret_cast<fake_server::FakeServer*>(fake_server);
   std::string native_id = base::android::ConvertJavaStringToUTF8(env, id);
   fake_server_ptr->InjectEntity(
       fake_server::TombstoneEntity::Create(native_id));
 }
 
 // static
 bool FakeServerHelperAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }