[Payments] Record use of profiles and credit cards in Payment Request.

components/autofill/core/browser/personal_data_manager.h

Index: components/autofill/core/browser/personal_data_manager.h
diff --git a/components/autofill/core/browser/personal_data_manager.h b/components/autofill/core/browser/personal_data_manager.h
index 8d23206f1558a593cf7bf04912fbf00494e0de9b..b32e130b3dc4ef6cf35142fb9af318065a40edcc 100644
--- a/components/autofill/core/browser/personal_data_manager.h
+++ b/components/autofill/core/browser/personal_data_manager.h
@@ -260,6 +260,11 @@ class PersonalDataManager : public KeyedService,
   static void DedupeCreditCardToSuggest(
       std::list<CreditCard*>* cards_to_suggest);
 
+  // Notifies test observers that personal data has changed.
+  void NotifyPersonalDataChangedForTest() {
+    NotifyPersonalDataChanged();
+  }
+
  protected:
   // Only PersonalDataManagerFactory and certain tests can create instances of
   // PersonalDataManager.