commit edbec47aaaa06561b562f3fa8985c00c0e2d9f51
author Vadym Doroshenko <dvadym@chromium.org> Wed Jan 23 17:24:06 2019
committer Commit Bot <commit-bot@chromium.org> Wed Jan 23 17:24:06 2019
tree 9ceba2b7f9f5194722ac0912d7c4d45bf65fb1fd
parent 170fba4c060fedabf9e23394d851e180a7163dfa

Create missing NewPasswordFormManager during provisionally saving.

The normal flow:
1.A form is loaded on a page, NewPasswordFormManager is created.
2.The form is submitted (by the user or by JavaScript)
3.The submitted data are saved provisionally in the corresponding
NewPasswordFormManager
4.The form is disappeared from the page (that's considered as submission
success criteria), the proviosionally saved data are used for offering
saving.

But in principle, step 1 might be missing, for example when JavaScript
creates a dummy form, copies user typed credentials to the form and
submits the form.

This CL ensures, that we will save even in that case, by creating
NewPasswordFormManager in step 2, if it is not created yet.

Bug: 831123
Change-Id: I17b9d42d6ed4bb2daf2f052e84b376490f556bc8
Reviewed-on: https://chromium-review.googlesource.com/c/1392088
Commit-Queue: Vadym Doroshenko <dvadym@chromium.org>
Reviewed-by: Maxim Kolosovskiy <kolos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625244}