ASH: Use virtual screen coordinates in Display::bounds()

ui/aura/single_display_manager.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 "ui/aura/single_display_manager.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "ui/aura/aura_switches.h"
@@ skipping 36 matching lines @@
 RootWindow* SingleDisplayManager::CreateRootWindowForDisplay(
     const gfx::Display& display) {
   DCHECK(!root_window_);
   DCHECK_EQ(display_.id(), display.id());
   root_window_ = new RootWindow(display.bounds());
   root_window_->AddObserver(this);
   root_window_->Init();
   return root_window_;
 }
 
-const gfx::Display& SingleDisplayManager::GetDisplayAt(size_t index) {
-  return display_;
+gfx::Display* SingleDisplayManager::GetDisplayAt(size_t index) {
+  return &display_;
 }
 
 size_t SingleDisplayManager::GetNumDisplays() const {
   return 1;
 }
 
 const gfx::Display& SingleDisplayManager::GetDisplayNearestWindow(
     const Window* window) const {
   return display_;
 }
@@ skipping 20 matching lines @@
   const string size_str = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
       switches::kAuraHostWindowSize);
   display_ = CreateDisplayFromSpec(size_str);
 }
 
 void SingleDisplayManager::Update(const gfx::Size size) {
   display_.SetSize(size);
 }
 
 }  // namespace aura