Minimize black screen during the boot with multi displays

ash/root_window_controller.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/root_window_controller.h"
 
 #include <vector>
 
+#include "ash/ash_constants.h"
 #include "ash/ash_switches.h"
 #include "ash/desktop_background/desktop_background_widget_controller.h"
 #include "ash/display/display_controller.h"
 #include "ash/display/display_manager.h"
 #include "ash/focus_cycler.h"
 #include "ash/shelf_types.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_factory.h"
 #include "ash/shell_window_ids.h"
@@ skipping 30 matching lines @@
 #include "ui/gfx/screen.h"
 #include "ui/views/controls/menu/menu_model_adapter.h"
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/corewm/visibility_controller.h"
 #include "ui/views/view_model.h"
 #include "ui/views/view_model_utils.h"
 
 namespace ash {
 namespace {
 
-#if defined(OS_CHROMEOS)
-// Background color used for the Chrome OS boot splash screen.
-const SkColor kChromeOsBootColor = SkColorSetARGB(0xff, 0xfe, 0xfe, 0xfe);
-#endif
-
 // Duration for the animation that hides the boot splash screen, in
 // milliseconds.  This should be short enough in relation to
 // wm/window_animation.cc's brightness/grayscale fade animation that the login
 // background image animation isn't hidden by the splash screen animation.
 const int kBootSplashScreenHideDurationMs = 500;
 
 // Creates a new window for use as a container.
 aura::Window* CreateContainer(int window_id,
                               const char* name,
                               aura::Window* parent) {
@@ skipping 617 matching lines @@
       "OverlayContainer",
       lock_screen_related_containers);
   SetUsesScreenCoordinates(overlay_container);
 
   CreateContainer(kShellWindowId_PowerButtonAnimationContainer,
                   "PowerButtonAnimationContainer", root_window) ;
 }
 
 }  // namespace internal
 }  // namespace ash