Extract MonitorInfoProvider from WindowSizer.

chrome/browser/ui/monitor_info_provider_aura.cc

+// Copyright (c) 2011 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/monitor_info_provider.h"
+
+#include "base/compiler_specific.h"
+#include "ui/gfx/screen.h"
+
+namespace {
+
+// This assumes a single monitor, which is currently the case.
+class MonitorInfoProviderAura : public MonitorInfoProvider {
+ public:
+  MonitorInfoProviderAura();
+  virtual ~MonitorInfoProviderAura();
+
+  // Overridden from MonitorInfoProvider:
+  virtual gfx::Rect GetPrimaryMonitorWorkArea() const OVERRIDE;
+  virtual gfx::Rect GetPrimaryMonitorBounds() const OVERRIDE;
+  virtual gfx::Rect GetMonitorWorkAreaMatching(
+      const gfx::Rect& match_rect) const OVERRIDE;
+  virtual void UpdateWorkAreas() OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MonitorInfoProviderAura);
+};
+
+MonitorInfoProviderAura::MonitorInfoProviderAura() {
+}
+
+MonitorInfoProviderAura::~MonitorInfoProviderAura() {
+}
+
+gfx::Rect MonitorInfoProviderAura::GetPrimaryMonitorWorkArea() const {
+  return gfx::Screen::GetMonitorWorkAreaNearestPoint(gfx::Point());
+}
+
+gfx::Rect MonitorInfoProviderAura::GetPrimaryMonitorBounds() const {
+  return gfx::Screen::GetMonitorAreaNearestPoint(gfx::Point());
+}
+
+gfx::Rect MonitorInfoProviderAura::GetMonitorWorkAreaMatching(
+    const gfx::Rect& match_rect) const {
+  return gfx::Screen::GetMonitorWorkAreaNearestPoint(gfx::Point());
+}
+
+void MonitorInfoProviderAura::UpdateWorkAreas() {
+  work_areas_.clear();
+  work_areas_.push_back(GetPrimaryMonitorBounds());
+}
+
+}  // namespace
+
+// static
+MonitorInfoProvider* MonitorInfoProvider::Create() {
+  return new MonitorInfoProviderAura();
+}