Log the creation of Sign In related dialog boxes.

chrome/browser/ui/signin_view_controller.cc

 // Copyright 2016 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/signin_view_controller.h"
 
+#include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/signin_view_controller_delegate.h"
 #include "components/signin/core/common/profile_management_switches.h"
 
 SigninViewController::SigninViewController()
     : signin_view_controller_delegate_(nullptr) {}
 
 SigninViewController::~SigninViewController() {
   CloseModalSignin();
 }
 
 void SigninViewController::ShowModalSignin(
     profiles::BubbleViewMode mode,
     Browser* browser,
     signin_metrics::AccessPoint access_point) {
   CloseModalSignin();
   // The delegate will delete itself on request of the UI code when the widget
   // is closed.
   signin_view_controller_delegate_ =
       SigninViewControllerDelegate::CreateModalSigninDelegate(
           this, mode, browser, access_point);
+  chrome::RecordDialogCreation(chrome::DialogIdentifier::SIGN_IN);
 }
 
 void SigninViewController::ShowModalSyncConfirmationDialog(Browser* browser) {
   CloseModalSignin();
   // The delegate will delete itself on request of the UI code when the widget
   // is closed.
   signin_view_controller_delegate_ =
       SigninViewControllerDelegate::CreateSyncConfirmationDelegate(this,
                                                                    browser);
+  chrome::RecordDialogCreation(
+      chrome::DialogIdentifier::SIGN_IN_SYNC_CONFIRMATION);
 }
 
 void SigninViewController::ShowModalSigninErrorDialog(Browser* browser) {
   CloseModalSignin();
   // The delegate will delete itself on request of the UI code when the widget
   // is closed.
   signin_view_controller_delegate_ =
       SigninViewControllerDelegate::CreateSigninErrorDelegate(this, browser);
+  chrome::RecordDialogCreation(chrome::DialogIdentifier::SIGN_IN_ERROR);
 }
 
 void SigninViewController::CloseModalSignin() {
   if (signin_view_controller_delegate_)
     signin_view_controller_delegate_->CloseModalSignin();
 
   DCHECK(!signin_view_controller_delegate_);
 }
 
 void SigninViewController::SetModalSigninHeight(int height) {
   if (signin_view_controller_delegate_)
     signin_view_controller_delegate_->ResizeNativeView(height);
 }
 
 void SigninViewController::ResetModalSigninDelegate() {
   signin_view_controller_delegate_ = nullptr;
 }
 
 // static
 bool SigninViewController::ShouldShowModalSigninForMode(
     profiles::BubbleViewMode mode) {
   return switches::UsePasswordSeparatedSigninFlow() &&
          (mode == profiles::BUBBLE_VIEW_MODE_GAIA_SIGNIN ||
           mode == profiles::BUBBLE_VIEW_MODE_GAIA_ADD_ACCOUNT ||
           mode == profiles::BUBBLE_VIEW_MODE_GAIA_REAUTH);
 }