jni_generator: Pass object parameters as JavaParamRef.

content/browser/android/download_controller_android_impl.cc

 // Copyright (c) 2012 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 "content/browser/android/download_controller_android_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/bind.h"
 #include "base/lazy_instance.h"
@@ skipping 81 matching lines @@
     dl_params->set_prefer_cache(true);
   dl_params->set_prompt(false);
   dlm->DownloadUrl(dl_params.Pass());
 }
 
 }  // namespace
 
 namespace content {
 
 // JNI methods
-static void Init(JNIEnv* env, jobject obj) {
+static void Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   DownloadControllerAndroidImpl::GetInstance()->Init(env, obj);
 }
 
-static void OnRequestFileAccessResult(
-    JNIEnv* env, jobject obj, jlong callback_id, jboolean granted) {
+static void OnRequestFileAccessResult(JNIEnv* env,
+                                      const JavaParamRef<jobject>& obj,
+                                      jlong callback_id,
+                                      jboolean granted) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(callback_id);
 
   // Convert java long long int to c++ pointer, take ownership.
   scoped_ptr<DownloadControllerAndroid::AcquireFileAccessPermissionCallback> cb(
       reinterpret_cast<
           DownloadControllerAndroid::AcquireFileAccessPermissionCallback*>(
               callback_id));
   cb->Run(granted);
 }
@@ skipping 457 matching lines @@
   }
 
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
   if (info)
     has_user_gesture = info->HasUserGesture();
 }
 
 DownloadControllerAndroidImpl::DownloadInfoAndroid::~DownloadInfoAndroid() {}
 
 }  // namespace content