Trigger protected password entry request on password reuse event.

components/password_manager/core/browser/password_reuse_detection_manager.cc

Index: components/password_manager/core/browser/password_reuse_detection_manager.cc
diff --git a/components/password_manager/core/browser/password_reuse_detection_manager.cc b/components/password_manager/core/browser/password_reuse_detection_manager.cc
index a45670fdc70596ea3a31bb804212699bf6033582..061a20126d19c28de23437001eb84f2e970a62b8 100644
--- a/components/password_manager/core/browser/password_reuse_detection_manager.cc
+++ b/components/password_manager/core/browser/password_reuse_detection_manager.cc
@@ -69,6 +69,8 @@ void PasswordReuseDetectionManager::OnReuseFound(
   safe_browsing::PasswordProtectionService* password_protection_service =
       client_->GetPasswordProtectionService();
   password_protection_service->RecordPasswordReuse(main_frame_url_);
+  password_protection_service->MaybeStartProtectedPasswordEntryRequest(

[Nathan Parker, 2017/05/12 22:27:59]

Could the Record be called from within MaybeStart? That way it could be private
and not exposed here.

[Jialiu Lin, 2017/05/13 00:24:12]

I was thinking about removing the RecordPasswordReuse function, since this
metrics (PasswordManager.PasswordReuse.MainFrameMatchCsdWhitelist) is kind of
redundant once  we started pinging.

If password_manager team is not actively using this metric, I would suggest
deprecate it. 

+dvadym, could you comment on this?

+      main_frame_url_, legitimate_domain);
 #endif
 }