Make PersonalDataManager use GetCreditCards() (rather than using credit_cards_ directly) so Autofill

chrome/browser/autofill/android/personal_data_manager_android.cc

Index: chrome/browser/autofill/android/personal_data_manager_android.cc
diff --git a/chrome/browser/autofill/android/personal_data_manager_android.cc b/chrome/browser/autofill/android/personal_data_manager_android.cc
index b5b01f75d7eb1be21a47ce17279f2ff2debaf422..d80a32264d6108a355df7b2badd45adb657ac381 100644
--- a/chrome/browser/autofill/android/personal_data_manager_android.cc
+++ b/chrome/browser/autofill/android/personal_data_manager_android.cc
@@ -209,7 +209,7 @@ ScopedJavaLocalRef<jstring> PersonalDataManagerAndroid::SetProfile(
 
 jint PersonalDataManagerAndroid::GetCreditCardCount(JNIEnv* unused_env,
                                                     jobject unused_obj) {
-  return personal_data_manager_->credit_cards().size();
+  return personal_data_manager_->GetCreditCards().size();
 }
 
 ScopedJavaLocalRef<jobject> PersonalDataManagerAndroid::GetCreditCardByIndex(
@@ -217,7 +217,7 @@ ScopedJavaLocalRef<jobject> PersonalDataManagerAndroid::GetCreditCardByIndex(
     jobject unused_obj,
     jint index) {
   const std::vector<CreditCard*>& credit_cards =
-      personal_data_manager_->credit_cards();
+      personal_data_manager_->GetCreditCards();
   size_t index_size_t = static_cast<size_t>(index);
   DCHECK_LT(index_size_t, credit_cards.size());
   return CreateJavaCreditCardFromNative(env, *credit_cards[index_size_t]);