Pass method parameters as JavaParamRef in android_webview.

android_webview/native/permission/aw_permission_request.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 "android_webview/native/permission/aw_permission_request.h"
 
 #include "android_webview/native/permission/aw_permission_request_delegate.h"
 #include "base/android/jni_string.h"
 #include "jni/AwPermissionRequest_jni.h"
 
@@ skipping 28 matching lines @@
       env, reinterpret_cast<jlong>(this),
       ConvertUTF8ToJavaString(env, GetOrigin().spec()).obj(), GetResources());
   java_ref_ = JavaObjectWeakGlobalRef(env, java_peer->obj());
 }
 
 AwPermissionRequest::~AwPermissionRequest() {
   OnAcceptInternal(false);
 }
 
 void AwPermissionRequest::OnAccept(JNIEnv* env,
-                                   jobject jcaller,
+                                   const JavaParamRef<jobject>& jcaller,
                                    jboolean accept) {
   OnAcceptInternal(accept);
 }
 
 void AwPermissionRequest::OnAcceptInternal(bool accept) {
   if (!processed_) {
     delegate_->NotifyRequestResult(accept);
     processed_ = true;
   }
 }
 
 void AwPermissionRequest::DeleteThis() {
   ScopedJavaLocalRef<jobject> j_request = GetJavaObject();
   if (j_request.is_null())
     return;
   Java_AwPermissionRequest_destroyNative(AttachCurrentThread(),
                                          j_request.obj());
 }
 
-void AwPermissionRequest::Destroy(JNIEnv* env, jobject obj) {
+void AwPermissionRequest::Destroy(JNIEnv* env,
+                                  const JavaParamRef<jobject>& obj) {
   delete this;
 }
 
 ScopedJavaLocalRef<jobject> AwPermissionRequest::GetJavaObject() {
   return java_ref_.get(AttachCurrentThread());
 }
 
 const GURL& AwPermissionRequest::GetOrigin() {
   return delegate_->GetOrigin();
 }
 
 int64 AwPermissionRequest::GetResources() {
   return delegate_->GetResources();
 }
 
 void AwPermissionRequest::CancelAndDelete() {
   processed_ = true;
   DeleteThis();
 }
 
 bool RegisterAwPermissionRequest(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webivew