Implement PasswordFormManager::WipeStoreCopyIfOutdated in FormSaver

components/password_manager/core/browser/form_saver.h

Index: components/password_manager/core/browser/form_saver.h
diff --git a/components/password_manager/core/browser/form_saver.h b/components/password_manager/core/browser/form_saver.h
index 9b452d415a6336aed36000887ebabfd298c6ed45..825dddc5685ff33ce9d6c788f68fd170d14fccb2 100644
--- a/components/password_manager/core/browser/form_saver.h
+++ b/components/password_manager/core/browser/form_saver.h
@@ -54,6 +54,17 @@ class FormSaver {
   // password.
   virtual void RemovePresavedPassword() = 0;
 
+  // Removes all credentials from |best_matches| which are for the same GAIA
+  // account as |pending|, but with a different (i.e., outdated) password. The
+  // credentials are removed both from the store and from |best_matches|. If
+  // one of the removed credentials is the pointee of |*preferred_match|,
+  // |*preferred_match| is nulled. Do not call this if |pending| is not a GAIA
+  // account.
+  virtual void WipeOutdatedCopies(
+      const autofill::PasswordForm& pending,
+      autofill::PasswordFormMap* best_matches,
+      const autofill::PasswordForm** preferred_match) = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(FormSaver);
 };