rAc: don't open sign in continue url in new tab

components/autofill/content/browser/wallet/wallet_service_url.h

Index: components/autofill/content/browser/wallet/wallet_service_url.h
diff --git a/components/autofill/content/browser/wallet/wallet_service_url.h b/components/autofill/content/browser/wallet/wallet_service_url.h
index e5a5002d68deef60d32cb8ee1ed3ce37a5ff2631..a8481f47741e3a0de5bda1d6c0a5dd1818fa6c5e 100644
--- a/components/autofill/content/browser/wallet/wallet_service_url.h
+++ b/components/autofill/content/browser/wallet/wallet_service_url.h
@@ -32,6 +32,9 @@ GURL GetSignInUrl();
 // A redirect to this URL will occur once sign-in is complete.
 GURL GetSignInContinueUrl();
 
+// Facilitates testing by setting the sign in continue URL to a mock address.
+void SetUseTestingSignInContinueUrl();
+
 // Returns true if |url| is an acceptable variant of the sign-in continue
 // url.  Can be used for detection of navigation to the continue url.  If
 // |url| is a sign-in url, |user_index| will also be filled in to indicate