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

chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h

Index: chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h
diff --git a/chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h b/chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h
index 8bfb3be651f21e22869f0c804cc36c5589d82d48..005bcf4ad0833c7d5659a7d2e295d8e05525d24f 100644
--- a/chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h
+++ b/chrome/browser/ui/android/autofill/credit_card_scanner_view_android.h
@@ -33,14 +33,16 @@ class CreditCardScannerViewAndroid : public CreditCardScannerView {
   ~CreditCardScannerViewAndroid() override;
 
   // Called by JNI when user cancelled credit card scan.
-  void ScanCancelled(JNIEnv* env, jobject object);
+  void ScanCancelled(JNIEnv* env,
+                     const base::android::JavaParamRef<jobject>& object);
 
   // Called by JNI when credit card scan completed successfully.
   void ScanCompleted(JNIEnv* env,
-                     jobject object,
-                     jstring card_number,
+                     const base::android::JavaParamRef<jobject>& object,
+                     const base::android::JavaParamRef<jstring>& card_number,
                      jint expiration_month,
                      jint expiration_year);
+
  private:
   // CreditCardScannerView implementation.
   void Show() override;