UMA histogram of user action on multi-account password update bubble.

chrome/browser/ui/views/passwords/credentials_selection_view.cc

Index: chrome/browser/ui/views/passwords/credentials_selection_view.cc
diff --git a/chrome/browser/ui/views/passwords/credentials_selection_view.cc b/chrome/browser/ui/views/passwords/credentials_selection_view.cc
index 483b731ee5dcac1a3ed7b51204b700685215926a..aebd9e13d3d6d99f092c6a10f4fa75741ef4fa88 100644
--- a/chrome/browser/ui/views/passwords/credentials_selection_view.cc
+++ b/chrome/browser/ui/views/passwords/credentials_selection_view.cc
@@ -7,6 +7,7 @@
 #include <stddef.h>
 
 #include "chrome/browser/ui/passwords/manage_passwords_bubble_model.h"
+#include "components/password_manager/core/browser/password_manager_metrics_util.h"
 #include "ui/base/models/simple_combobox_model.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/controls/button/button.h"
@@ -26,40 +27,14 @@ views::Label* GeneratePasswordLabel(const autofill::PasswordForm& form) {
   return label;
 }
 
-views::Combobox* GenerateUsernameCombobox(
-    const std::vector<const autofill::PasswordForm*>& forms,
-    const base::string16& best_matched_username) {
-  std::vector<base::string16> usernames;
-  size_t best_matched_username_index = forms.size();
-  size_t preferred_form_index = forms.size();
-  for (size_t index = 0; index < forms.size(); ++index) {
-    usernames.push_back(forms[index]->username_value);
-    if (forms[index]->username_value == best_matched_username) {
-      best_matched_username_index = index;
-    }
-    if (forms[index]->preferred) {
-      preferred_form_index = index;
-    }
-  }
-
-  views::Combobox* combobox =
-      new views::Combobox(new ui::SimpleComboboxModel(usernames));
-
-  if (best_matched_username_index < forms.size()) {
-    combobox->SetSelectedIndex(best_matched_username_index);
-  } else if (preferred_form_index < forms.size()) {
-    combobox->SetSelectedIndex(preferred_form_index);
-  }
-  return combobox;
-}
-
 }  // namespace
 
 CredentialsSelectionView::CredentialsSelectionView(
     ManagePasswordsBubbleModel* manage_passwords_bubble_model,
     const std::vector<const autofill::PasswordForm*>& password_forms,
     const base::string16& best_matched_username)
-    : password_forms_(password_forms) {
+    : password_forms_(password_forms),
+      action_reported_(false) {
   DCHECK(!password_forms.empty());
 
   // Layout.
@@ -90,9 +65,93 @@ CredentialsSelectionView::CredentialsSelectionView(
   GetLayoutManager()->Layout(this);
 }
 
+CredentialsSelectionView::~CredentialsSelectionView() {
+  ReportUserActionOnce(true, -1);
+}
+
 const autofill::PasswordForm*
 CredentialsSelectionView::GetSelectedCredentials() {
   DCHECK_EQ(password_forms_.size(),
             static_cast<size_t>(combobox_->model()->GetItemCount()));
+  ReportUserActionOnce(false, combobox_->selected_index());
   return password_forms_[combobox_->selected_index()];
 }
+
+views::Combobox* CredentialsSelectionView::GenerateUsernameCombobox(
+    const std::vector<const autofill::PasswordForm*>& forms,
+    const base::string16& best_matched_username) {
+  std::vector<base::string16> usernames;
+  size_t best_matched_username_index = forms.size();
+  size_t preferred_form_index = forms.size();
+  for (size_t index = 0; index < forms.size(); ++index) {
+    usernames.push_back(forms[index]->username_value);
+    if (forms[index]->username_value == best_matched_username) {
+      best_matched_username_index = index;
+    }
+    if (forms[index]->preferred) {
+      preferred_form_index = index;
+    }
+  }
+
+  views::Combobox* combobox =
+      new views::Combobox(new ui::SimpleComboboxModel(usernames));
+
+  default_index_ = 0;
+  is_default_best_match_ = false;
+  is_default_preferred_ = false;
+
+  if (best_matched_username_index < forms.size()) {
+    is_default_best_match_ = true;
+    default_index_ = best_matched_username_index;
+    combobox->SetSelectedIndex(best_matched_username_index);
+  } else if (preferred_form_index < forms.size()) {
+    is_default_preferred_ = true;
+    default_index_ = preferred_form_index;
+    combobox->SetSelectedIndex(preferred_form_index);
+  }
+  return combobox;
+}
+
+void CredentialsSelectionView::ReportUserActionOnce(bool was_update_rejected,
+                                                    int selected_index) {
+  if (action_reported_)
+    return;
+  password_manager::metrics_util::MultiAccountUpdateBubbleUserAction action;
+  if (was_update_rejected) {
+    if (is_default_best_match_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_MATCHED_BY_PASSWORD_USER_REJECTED_UPDATE;
+    } else if (is_default_preferred_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_PREFERRED_USER_REJECTED_UPDATE;
+    } else {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_FIRST_USER_REJECTED_UPDATE;
+    }
+  } else if (selected_index == default_index_) {
+    if (is_default_best_match_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_MATCHED_BY_PASSWORD_USER_NOT_CHANGED;
+    } else if (is_default_preferred_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_PREFERRED_USER_NOT_CHANGED;
+    } else {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_FIRST_USER_NOT_CHANGED;
+    }
+  } else {
+    if (is_default_best_match_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_MATCHED_BY_PASSWORD_USER_CHANGED;
+    } else if (is_default_preferred_) {
+      action = password_manager::metrics_util::
+          DEFAULT_ACCOUNT_PREFERRED_USER_CHANGED;
+    } else {
+      action =
+          password_manager::metrics_util::DEFAULT_ACCOUNT_FIRST_USER_CHANGED;
+    }
+  }
+
+  password_manager::metrics_util::LogMultiAccountUpdateBubbleUserAction(action);
+  action_reported_ = true;
+}