MonitorManager to manage multiple monitors.

ui/aura/screen_aura.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/screen_aura.h"
 
 #include "base/logging.h"
+#include "ui/aura/env.h"
+#include "ui/aura/monitor.h"
+#include "ui/aura/monitor_manager.h"
 #include "ui/aura/root_window.h"
-#include "ui/aura/window.h"
-#include "ui/gfx/native_widget_types.h"
 
 namespace aura {
 
 ScreenAura::ScreenAura(RootWindow* root_window) : root_window_(root_window) {
 }
 
 ScreenAura::~ScreenAura() {
 }
 
 gfx::Point ScreenAura::GetCursorScreenPointImpl() {
   return root_window_->last_mouse_location();
 }
 
 gfx::Rect ScreenAura::GetMonitorWorkAreaNearestWindowImpl(
     gfx::NativeWindow window) {
-  return GetWorkAreaBounds();
+  return Env::GetInstance()->monitor_manager()->
+      GetMonitorNearestWindow(window)->GetWorkAreaBounds();
 }
 
 gfx::Rect ScreenAura::GetMonitorAreaNearestWindowImpl(
     gfx::NativeWindow window) {
-  return GetBounds();
+  return Env::GetInstance()->monitor_manager()->
+      GetMonitorNearestWindow(window)->bounds();
 }
 
 gfx::Rect ScreenAura::GetMonitorWorkAreaNearestPointImpl(
     const gfx::Point& point) {
-  return GetWorkAreaBounds();
+  return Env::GetInstance()->monitor_manager()->
+      GetMonitorNearestPoint(point)->GetWorkAreaBounds();
 }
 
-gfx::Rect ScreenAura::GetMonitorAreaNearestPointImpl(const gfx::Point& point) {
-  return GetBounds();
+gfx::Rect ScreenAura::GetMonitorAreaNearestPointImpl(
+    const gfx::Point& point) {
+  return Env::GetInstance()->monitor_manager()->
+      GetMonitorNearestPoint(point)->bounds();
 }
 
 gfx::NativeWindow ScreenAura::GetWindowAtCursorScreenPointImpl() {
   const gfx::Point point = GetCursorScreenPoint();
   return root_window_->GetTopWindowContainingPoint(point);
 }
 
-gfx::Rect ScreenAura::GetBounds() {
-  return gfx::Rect(root_window_->bounds().size());
-}
-
-gfx::Rect ScreenAura::GetWorkAreaBounds() {
-  gfx::Rect bounds(GetBounds());
-  bounds.Inset(work_area_insets_);
-  return bounds;
-}
-
 gfx::Size ScreenAura::GetPrimaryMonitorSizeImpl() {
-  return GetMonitorWorkAreaNearestPoint(gfx::Point()).size();
+  return Env::GetInstance()->monitor_manager()->GetPrimaryMonitor()->size();
 }
 
 int ScreenAura::GetNumMonitorsImpl() {
-  return 1;
+  return Env::GetInstance()->monitor_manager()->GetNumMonitors();
 }
 
 }  // namespace aura