Pass method parameters as JavaParamRef in chrome/browser (part 2).

chrome/browser/password_manager/account_chooser_dialog_android.h

 // Copyright 2015 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_PASSWORD_MANAGER_ACCOUNT_CHOOSER_DIALOG_ANDROID_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_ACCOUNT_CHOOSER_DIALOG_ANDROID_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 13 matching lines @@
 class AccountChooserDialogAndroid {
  public:
   AccountChooserDialogAndroid(
       content::WebContents* web_contents,
       ScopedVector<autofill::PasswordForm> local_credentials,
       ScopedVector<autofill::PasswordForm> federated_credentials,
       const GURL& origin,
       const ManagePasswordsState::CredentialsCallback& callback);
 
   ~AccountChooserDialogAndroid();
-  void Destroy(JNIEnv* env, jobject obj);
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   void ShowDialog();
 
   // Closes the dialog and propagates that no credentials was chosen.
-  void CancelDialog(JNIEnv* env, jobject obj);
+  void CancelDialog(JNIEnv* env,
+                    const base::android::JavaParamRef<jobject>& obj);
 
   // Propagates the credentials chosen by the user.
   void OnCredentialClicked(JNIEnv* env,
-                           jobject obj,
+                           const base::android::JavaParamRef<jobject>& obj,
                            jint credential_item,
                            jint credential_type);
 
   // Opens new tab with page which explains the Smart Lock branding.
-  void OnLinkClicked(JNIEnv* env, jobject obj);
+  void OnLinkClicked(JNIEnv* env,
+                     const base::android::JavaParamRef<jobject>& obj);
 
  private:
   const std::vector<const autofill::PasswordForm*>& local_credentials_forms()
       const;
 
   const std::vector<const autofill::PasswordForm*>&
   federated_credentials_forms() const;
 
   void ChooseCredential(size_t index, password_manager::CredentialType type);
 
   content::WebContents* web_contents_;
   ManagePasswordsState passwords_data_;
 
   DISALLOW_COPY_AND_ASSIGN(AccountChooserDialogAndroid);
 };
 
 // Native JNI methods
 bool RegisterAccountChooserDialogAndroid(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_ACCOUNT_CHOOSER_DIALOG_ANDROID_H_