jni_generator: Pass object parameters as JavaParamRef.

components/dom_distiller/core/distilled_page_prefs_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 "components/dom_distiller/core/distilled_page_prefs_android.h"
 
 #include "components/dom_distiller/core/distilled_page_prefs.h"
 #include "components/dom_distiller/core/dom_distiller_service.h"
 #include "jni/DistilledPagePrefs_jni.h"
 
@@ skipping 24 matching lines @@
 
 void DistilledPagePrefsAndroid::SetTheme(JNIEnv* env, jobject obj, jint theme) {
   distilled_page_prefs_->SetTheme(
       static_cast<DistilledPagePrefs::Theme>(theme));
 }
 
 jint DistilledPagePrefsAndroid::GetTheme(JNIEnv* env, jobject obj) {
   return (int) distilled_page_prefs_->GetTheme();
 }
 
-jlong Init(JNIEnv* env, jobject obj, jlong distilled_page_prefs_ptr) {
+jlong Init(JNIEnv* env,
+           const JavaParamRef<jobject>& obj,
+           jlong distilled_page_prefs_ptr) {
   DistilledPagePrefs* distilled_page_prefs =
       reinterpret_cast<DistilledPagePrefs*>(distilled_page_prefs_ptr);
   DistilledPagePrefsAndroid* distilled_page_prefs_android =
       new DistilledPagePrefsAndroid(env, obj, distilled_page_prefs);
   return reinterpret_cast<intptr_t>(distilled_page_prefs_android);
 }
 
 bool DistilledPagePrefsAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
@@ skipping 34 matching lines @@
       env, java_ref_.obj(), (int)new_font_family);
 }
 
 void DistilledPagePrefsObserverAndroid::OnChangeTheme(
     DistilledPagePrefs::Theme new_theme) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_DistilledPagePrefsObserverWrapper_onChangeTheme(
       env, java_ref_.obj(), (int)new_theme);
 }
 
-jlong InitObserverAndroid(JNIEnv* env, jobject obj) {
+jlong InitObserverAndroid(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   DistilledPagePrefsObserverAndroid* observer_android =
       new DistilledPagePrefsObserverAndroid(env, obj);
   return reinterpret_cast<intptr_t>(observer_android);
 }
 
 }  // namespace android
 
 }  // namespace dom_distiller