Exclude building signin view controller and its delegate on ChromeOS

chrome/browser/ui/browser.cc

 // Copyright 2012 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/browser.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 911 matching lines @@
   // the throbber will show the default favicon for a split second when
   // navigating away from the new tab page.
   ScheduleUIUpdate(contents, content::INVALIDATE_TYPE_URL);
 
   if (contents_is_selected &&
       (window()->IsActive() || action == chrome::NavigateParams::SHOW_WINDOW)) {
     contents->SetInitialFocus();
   }
 }
 
-void Browser::ShowModalSigninWindow(profiles::BubbleViewMode mode,
-                                    signin_metrics::AccessPoint access_point) {
-  signin_view_controller_.ShowModalSignin(mode, this, access_point);
-}
-
-void Browser::CloseModalSigninWindow() {
-  signin_view_controller_.CloseModalSignin();
-}
-
-void Browser::ShowModalSyncConfirmationWindow() {
-  signin_view_controller_.ShowModalSyncConfirmationDialog(this);
-}
-
-void Browser::ShowModalSigninErrorWindow() {
-  signin_view_controller_.ShowModalSigninErrorDialog(this);
-}
-
 void Browser::RegisterKeepAlive() {
   keep_alive_.reset(new ScopedKeepAlive(KeepAliveOrigin::BROWSER,
                                         KeepAliveRestartOption::DISABLED));
 }
 void Browser::UnregisterKeepAlive() {
   keep_alive_.reset();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, PageNavigator implementation:
@@ skipping 1679 matching lines @@
     // new window later, thus we need to navigate the window now.
     if (contents) {
       contents->web_contents()->GetController().LoadURL(
           target_url, content::Referrer(), ui::PAGE_TRANSITION_LINK,
           std::string());  // No extra headers.
     }
   }
 
   return contents != NULL;
 }