Change the behavior of the [X] Save details to Wallet checkbox notification to:

chrome/browser/ui/autofill/autofill_dialog_controller.h

Index: chrome/browser/ui/autofill/autofill_dialog_controller.h
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller.h b/chrome/browser/ui/autofill/autofill_dialog_controller.h
index 4fee0bd1676ed968c6100c45d8245437fd97469a..ce86d419b4f9093d242f6fe115e0b8fb9285c435 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_controller.h
+++ b/chrome/browser/ui/autofill/autofill_dialog_controller.h
@@ -76,6 +76,13 @@ class AutofillDialogController {
   // Returns the icon that should be shown in the account chooser.
   virtual gfx::Image AccountChooserImage() = 0;
 
+  // Whether the user last selected "Pay Without Wallet" as their payment
+  // method.
+  virtual bool GetPayWithoutWallet() const = 0;
+
+  // Change the value of the "Pay Without Wallet" pref.
+  virtual void SetPayWithoutWallet(bool pay_without_wallet) = 0;
+
   // Whether or not an Autocheckout flow is running.
   virtual bool AutocheckoutIsRunning() const = 0;