Added UMA statistics for change passwords in the Password Manager

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/passwords/manage_passwords_bubble_view.h"
 
 #include "base/timer/timer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ skipping 1009 matching lines @@
   SetLayoutManager(layout);
 
   // Create the pending credential item, update button.
   View* item = nullptr;
   if (parent->model()->ShouldShowMultipleAccountUpdateUI()) {
     selection_view_ = new CredentialsSelectionView(
         parent->model(), parent->model()->local_credentials().get(),
         parent->model()->pending_password().username_value);
     item = selection_view_;
   } else {
-    DCHECK_EQ(1u, parent->model()->local_credentials().size());
-    DCHECK_EQ(parent->model()->local_credentials()[0]->username_value,
-              parent->model()->pending_password().username_value);
+    // |pending_password()| is a form that should be updated, so it should be
+    // used when the user clicks "Update".
     std::vector<const autofill::PasswordForm*> forms;
     forms.push_back(&parent->model()->pending_password());
     item = new ManagePasswordItemsView(parent_->model(), forms);
   }
   nope_button_ = new views::LabelButton(
       this, l10n_util::GetStringUTF16(IDS_PASSWORD_MANAGER_CANCEL_BUTTON));
   nope_button_->SetStyle(views::Button::STYLE_BUTTON);
   nope_button_->SetFontList(ui::ResourceBundle::GetSharedInstance().GetFontList(
       ui::ResourceBundle::SmallFont));
 
@@ skipping 41 matching lines @@
 void ManagePasswordsBubbleView::UpdatePendingView::ButtonPressed(
     views::Button* sender,
     const ui::Event& event) {
   DCHECK(sender == update_button_ || sender == nope_button_);
   if (sender == update_button_) {
     if (selection_view_) {
       // Multi account case.
       parent_->model()->OnUpdateClicked(
           *selection_view_->GetSelectedCredentials());
     } else {
-      parent_->model()->OnUpdateClicked(
-          *parent_->model()->local_credentials()[0]);
+      parent_->model()->OnUpdateClicked(parent_->model()->pending_password());
     }
+  } else {
+    parent_->model()->OnNopeUpdateClicked();
   }
   parent_->Close();
 }
 
 void ManagePasswordsBubbleView::UpdatePendingView::StyledLabelLinkClicked(
     const gfx::Range& range,
     int event_flags) {
   DCHECK_EQ(range, parent_->model()->title_brand_link_range());
   parent_->model()->OnBrandLinkClicked();
 }
@@ skipping 139 matching lines @@
 void ManagePasswordsBubbleView::NotifyNeverForThisSiteClicked() {
   if (model()->local_credentials().empty()) {
     // Skip confirmation if there are no existing passwords for this site.
     NotifyConfirmedNeverForThisSite();
   } else {
     model()->OnConfirmationForNeverForThisSite();
     Refresh();
     SizeToContents();
   }
 }