[Password Manager] Modified to support saving passwords on forms without username fields.

components/password_manager/core/browser/password_form_manager.h

Index: components/password_manager/core/browser/password_form_manager.h
diff --git a/components/password_manager/core/browser/password_form_manager.h b/components/password_manager/core/browser/password_form_manager.h
index a4fa82ed531e985ed3da9ff4b95c2388df72a648..e5fae53303c6108df4c405412de91da76f9dd484 100644
--- a/components/password_manager/core/browser/password_form_manager.h
+++ b/components/password_manager/core/browser/password_form_manager.h
@@ -100,8 +100,8 @@ class PasswordFormManager : public PasswordStoreConsumer {
   // form.
   bool IsPendingCredentialsPublicSuffixMatch();
 
-  // Checks if the form is a valid password form. Forms which lack either
-  // login or password field are not considered valid.
+  // Checks if the form is a valid password form. Forms which lack password
+  // field are not considered valid.
   bool HasValidPasswordForm();
 
   // These functions are used to determine if this form has had it's password