Add metrics for PasswordForm submission types

components/password_manager/core/browser/password_manager.cc

Index: components/password_manager/core/browser/password_manager.cc
diff --git a/components/password_manager/core/browser/password_manager.cc b/components/password_manager/core/browser/password_manager.cc
index 372aa78e491ad92eabb31be38ef24abd11e1104d..4d2567919a6627fba89ba38f8b6a1af5f3514621 100644
--- a/components/password_manager/core/browser/password_manager.cc
+++ b/components/password_manager/core/browser/password_manager.cc
@@ -714,6 +714,9 @@ void PasswordManager::OnLoginSuccessful() {
 
   client_->GetStoreResultFilter()->ReportFormLoginSuccess(
       *provisional_save_manager_);
+  if (provisional_save_manager_->submitted_form())

[engedy, 2017/05/09 22:02:59]

style nit: {}

[dvadym, 2017/05/10 12:10:12]

Done.

+    metrics_util::LogPasswordSuccessfulSubmissionEvent(

[engedy, 2017/05/09 22:02:59]

optional nit: Do you think it would make sense to log this to
chrome://pm-internals?

[dvadym, 2017/05/10 12:10:12]

Sure, I'll do this in separate CL. 

[engedy, 2017/05/10 13:07:42]

Sounds good to me. +1 for tracking bug.

[dvadym, 2017/05/10 14:09:25]

Even not sure whether we need tracking bug for such small thing. I'll do this in
a couple of working days.

[engedy, 2017/05/10 14:15:56]

Acknowledged.

+        provisional_save_manager_->submitted_form()->submission_event);
 
   if (base::FeatureList::IsEnabled(features::kDropSyncCredential)) {
     DCHECK(provisional_save_manager_->submitted_form());