Exclude building signin view controller and its delegate on ChromeOS

chrome/browser/ui/views/profiles/profile_chooser_view.cc

 // Copyright 2014 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/profiles/profile_chooser_view.h"
 
 #include "base/macros.h"
 #include "base/metrics/user_metrics.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/vector_icons/vector_icons.h"
@@ skipping 743 matching lines @@
   if (view_to_focus)
     view_to_focus->RequestFocus();
 }
 
 void ProfileChooserView::ShowViewFromMode(profiles::BubbleViewMode mode) {
   if (SigninViewController::ShouldShowModalSigninForMode(mode)) {
     // Hides the user menu if it is currently shown. The user menu automatically
     // closes when it loses focus; however, on Windows, the signin modals do not
     // take away focus, thus we need to manually close the bubble.
     Hide();
-    browser_->ShowModalSigninWindow(mode, access_point_);
+    browser_->signin_view_controller()->ShowModalSignin(mode, browser_,
+                                                        access_point_);
   } else {
     ShowView(mode, avatar_menu_.get());
   }
 }
 
 void ProfileChooserView::FocusFirstProfileButton() {
   if (first_profile_button_)
     first_profile_button_->RequestFocus();
 }
 
@@ skipping 1116 matching lines @@
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognito_available && !browser_->profile()->IsGuestSession();
 }
 
 void ProfileChooserView::PostActionPerformed(
     ProfileMetrics::ProfileDesktopMenu action_performed) {
   ProfileMetrics::LogProfileDesktopMenu(action_performed, gaia_service_type_);
   gaia_service_type_ = signin::GAIA_SERVICE_TYPE_NONE;
 }