jni_generator: Pass object parameters as JavaParamRef.

chrome/browser/android/bookmarks/edit_bookmark_helper.cc

 // Copyright 2015 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/android/bookmarks/edit_bookmark_helper.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "chrome/browser/android/bookmarks/partner_bookmarks_shim.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_android.h"
 #include "jni/EditBookmarkHelper_jni.h"
 
 using bookmarks::BookmarkNode;
 
 void SetPartnerBookmarkTitle(JNIEnv* env,
-                             jclass clazz,
-                             jobject jprofile,
+                             const JavaParamRef<jclass>& clazz,
+                             const JavaParamRef<jobject>& jprofile,
                              jlong bookmark_id,
-                             jstring new_title) {
+                             const JavaParamRef<jstring>& new_title) {
   PartnerBookmarksShim* partner_bookmarks_shim =
       PartnerBookmarksShim::BuildForBrowserContext(
           chrome::GetBrowserContextRedirectedInIncognito(
               ProfileAndroid::FromProfileAndroid(jprofile)));
   if (!partner_bookmarks_shim)
     return;
 
   const BookmarkNode* node = partner_bookmarks_shim->GetNodeByID(bookmark_id);
   if (!node)
     return;
 
   partner_bookmarks_shim->RenameBookmark(
       node,
       base::android::ConvertJavaStringToUTF16(env, new_title));
 }
 
 // static
 bool RegisterEditBookmarkHelper(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }