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

chrome/browser/ui/android/javascript_app_modal_dialog_android.h

 // Copyright (c) 2012 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_JAVASCRIPT_APP_MODAL_DIALOG_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_JAVASCRIPT_APP_MODAL_DIALOG_ANDROID_H_
 
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 12 matching lines @@
   // NativeAppModalDialog:
   int GetAppModalDialogButtons() const override;
   void ShowAppModalDialog() override;
   void ActivateAppModalDialog() override;
   void CloseAppModalDialog() override;
   void AcceptAppModalDialog() override;
   void CancelAppModalDialog() override;
   bool IsShowing() const override;
 
   // Called when java confirms or cancels the dialog.
-  void DidAcceptAppModalDialog(JNIEnv* env,
-                               jobject obj,
-                               jstring prompt_text,
+  void DidAcceptAppModalDialog(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jstring>& prompt_text,
+      bool suppress_js_dialogs);
+  void DidCancelAppModalDialog(JNIEnv* env,
+                               const base::android::JavaParamRef<jobject>&,
                                bool suppress_js_dialogs);
-  void DidCancelAppModalDialog(JNIEnv* env, jobject, bool suppress_js_dialogs);
 
   const base::android::ScopedJavaGlobalRef<jobject>& GetDialogObject() const;
 
   static bool RegisterJavascriptAppModalDialog(JNIEnv* env);
 
  private:
   // The object deletes itself.
   ~JavascriptAppModalDialogAndroid() override;
 
   scoped_ptr<app_modal::JavaScriptAppModalDialog> dialog_;
   base::android::ScopedJavaGlobalRef<jobject> dialog_jobject_;
   JavaObjectWeakGlobalRef parent_jobject_weak_ref_;
 
   DISALLOW_COPY_AND_ASSIGN(JavascriptAppModalDialogAndroid);
 };
 
 
 #endif  // CHROME_BROWSER_UI_ANDROID_JAVASCRIPT_APP_MODAL_DIALOG_ANDROID_H_