Remove ui/gfx/screen_type_delegate.h

ash/shell.cc

 // Copyright (c) 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 "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 225 matching lines @@
 aura::Window* Shell::GetTargetRootWindow() {
   CHECK(HasInstance());
   Shell* shell = GetInstance();
   if (shell->scoped_target_root_window_)
     return shell->scoped_target_root_window_;
   return shell->target_root_window_;
 }
 
 // static
 gfx::Screen* Shell::GetScreen() {
-  return gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
+  return gfx::Screen::GetScreen();
 }
 
 // static
 aura::Window::Windows Shell::GetAllRootWindows() {
   CHECK(HasInstance());
   return Shell::GetInstance()->window_tree_host_manager()->GetAllRootWindows();
 }
 
 // static
 aura::Window* Shell::GetContainer(aura::Window* root_window,
@@ skipping 913 matching lines @@
 
 void Shell::OnWindowActivated(
     aura::client::ActivationChangeObserver::ActivationReason reason,
     aura::Window* gained_active,
     aura::Window* lost_active) {
   if (gained_active)
     target_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash