jni: Pass method parameters as JavaParamRef in chrome/browser/ui.

chrome/browser/ui/android/website_settings_popup_android.h

 // Copyright (c) 2013 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 CHROME_BROWSER_UI_ANDROID_WEBSITE_SETTINGS_POPUP_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_WEBSITE_SETTINGS_POPUP_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 16 matching lines @@
   CONNECTION_INTERNAL_PAGE,
 };
 
 // Android implementation of the website settings UI.
 class WebsiteSettingsPopupAndroid : public WebsiteSettingsUI {
  public:
   WebsiteSettingsPopupAndroid(JNIEnv* env,
                               jobject java_website_settings,
                               content::WebContents* web_contents);
   ~WebsiteSettingsPopupAndroid() override;
-  void Destroy(JNIEnv* env, jobject obj);
-  void OnPermissionSettingChanged(JNIEnv* env,
-                                  jobject obj,
-                                  jint type,
-                                  jint setting);
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
+  void OnPermissionSettingChanged(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      jint type,
+      jint setting);
 
   // WebsiteSettingsUI implementations.
   void SetCookieInfo(const CookieInfoList& cookie_info_list) override;
   void SetPermissionInfo(
       const PermissionInfoList& permission_info_list) override;
   void SetIdentityInfo(const IdentityInfo& identity_info) override;
   void SetSelectedTab(WebsiteSettingsUI::TabId tab_id) override;
 
   static bool RegisterWebsiteSettingsPopupAndroid(JNIEnv* env);
 
  private:
   // The presenter that controlls the Website Settings UI.
   scoped_ptr<WebsiteSettings> presenter_;
 
   // The java prompt implementation.
   base::android::ScopedJavaGlobalRef<jobject> popup_jobject_;
 
   GURL url_;
 
   DISALLOW_COPY_AND_ASSIGN(WebsiteSettingsPopupAndroid);
 };
 
 #endif  // CHROME_BROWSER_UI_ANDROID_WEBSITE_SETTINGS_POPUP_ANDROID_H_