Add context to gfx::Screen calls in support of simultaneous desktop+ash

chrome/browser/ui/webui/options/chromeos/display_options_handler.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 "chrome/browser/ui/webui/options/chromeos/display_options_handler.h"
 
 #include <string>
 
 #include "ash/display/display_controller.h"
 #include "ash/display/output_configurator_animation.h"
@@ skipping 99 matching lines @@
 void DisplayOptionsHandler::SendDisplayInfo() {
   aura::DisplayManager* display_manager =
       aura::Env::GetInstance()->display_manager();
   ash::DisplayController* display_controller =
       ash::Shell::GetInstance()->display_controller();
   chromeos::OutputConfigurator* output_configurator =
       ash::Shell::GetInstance()->output_configurator();
   base::FundamentalValue mirroring(
       output_configurator->output_state() == chromeos::STATE_DUAL_MIRROR);
 
-  int64 primary_id = gfx::Screen::GetPrimaryDisplay().id();
+  int64 primary_id = ash::Shell::GetAshScreen()->GetPrimaryDisplay().id();
   base::ListValue displays;
   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
     const gfx::Display* display = display_manager->GetDisplayAt(i);
     const gfx::Rect& bounds = display->bounds();
     base::DictionaryValue* js_display = new base::DictionaryValue();
     js_display->SetString("id", base::Int64ToString(display->id()));
     js_display->SetDouble("x", bounds.x());
     js_display->SetDouble("y", bounds.y());
     js_display->SetDouble("width", bounds.width());
     js_display->SetDouble("height", bounds.height());
@@ skipping 96 matching lines @@
   ash::Shell::GetInstance()->output_configurator_animation()->
       StartFadeOutAnimation(base::Bind(
           &DisplayOptionsHandler::OnFadeOutForDisplayLayoutFinished,
           base::Unretained(this),
           static_cast<int>(layout),
           static_cast<int>(offset)));
 }
 
 }  // namespace options
 }  // namespace chromeos