jni_generator: Pass object parameters as JavaParamRef.

chrome/browser/android/logo_bridge.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/android/logo_bridge.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 61 matching lines @@
  private:
   // The associated LogoBridge. We won't call back to Java if the LogoBridge has
   // been destroyed.
   base::WeakPtr<LogoBridge> logo_bridge_;
 
   base::android::ScopedJavaGlobalRef<jobject> j_logo_observer_;
 };
 
 }  // namespace
 
-static jlong Init(JNIEnv* env, jobject obj, jobject j_profile) {
+static jlong Init(JNIEnv* env,
+                  const JavaParamRef<jobject>& obj,
+                  const JavaParamRef<jobject>& j_profile) {
   LogoBridge* logo_bridge = new LogoBridge(j_profile);
   return reinterpret_cast<intptr_t>(logo_bridge);
 }
 
 LogoBridge::LogoBridge(jobject j_profile) : weak_ptr_factory_(this) {
   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
   if (profile)
     logo_service_ = LogoServiceFactory::GetForProfile(profile);
 }
 
@@ skipping 12 matching lines @@
   // |observer| is deleted in LogoObserverAndroid::OnObserverRemoved().
   LogoObserverAndroid* observer = new LogoObserverAndroid(
       weak_ptr_factory_.GetWeakPtr(), env, j_logo_observer);
   logo_service_->GetLogo(observer);
 }
 
 // static
 bool RegisterLogoBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }