Pass method parameters as JavaParamRef in android_webview.

android_webview/native/permission/aw_permission_request.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H
 #define ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H
 
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 23 matching lines @@
   // |weak_ptr|, which is owned by the returned java peer.
   static base::android::ScopedJavaLocalRef<jobject> Create(
       scoped_ptr<AwPermissionRequestDelegate> delegate,
       base::WeakPtr<AwPermissionRequest>* weak_ptr);
 
   // Return the Java peer. Must be null-checked.
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
 
   // Invoked by Java peer when request is processed, |granted| indicates the
   // request was granted or not.
-  void OnAccept(JNIEnv* env, jobject jcaller, jboolean granted);
-  void Destroy(JNIEnv* env, jobject obj);
+  void OnAccept(JNIEnv* env,
+                const base::android::JavaParamRef<jobject>& jcaller,
+                jboolean granted);
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // Return the origin which initiated the request.
   const GURL& GetOrigin();
 
   // Return the resources origin requested.
   int64 GetResources();
 
   // Cancel this request. Guarantee that
   // AwPermissionRequestDelegate::NotifyRequestResult will not be called after
   // this call. This also deletes this object, so weak pointers are invalidated
@@ skipping 17 matching lines @@
   base::WeakPtrFactory<AwPermissionRequest> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AwPermissionRequest);
 };
 
 bool RegisterAwPermissionRequest(JNIEnv* env);
 
 }  // namespace android_webivew
 
 #endif  // ANDROID_WEBVIEW_NATIVE_PERMISSION_AW_PERMISSION_REQUEST_H