Basic display management for mus

components/mus/ws/platform_screen_impl.h

+// Copyright 2016 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.
+
+#ifndef COMPONENTS_MUS_WS_PLATFORM_SCREEN_IMPL_H_
+#define COMPONENTS_MUS_WS_PLATFORM_SCREEN_IMPL_H_
+
+#include <stdint.h>
+
+#include "base/callback.h"
+#include "components/mus/ws/platform_screen.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace mus {
+namespace ws {
+
+// PlatformScreenImpl provides the necessary functionality to configure all
+// attached physical displays on non-ozone platforms.
+class PlatformScreenImpl : public PlatformScreen {
+ public:
+  PlatformScreenImpl();
+  ~PlatformScreenImpl() override;
+
+ private:
+  // PlatformScreen.
+  void Init() override;
+  void ConfigurePhysicalDisplay(
+      const PlatformScreen::ConfiguredDisplayCallback& callback) override;
+
+  DISALLOW_COPY_AND_ASSIGN(PlatformScreenImpl);
+};
+
+}  // namespace ws
+}  // namespace mus
+
+#endif  // COMPONENTS_MUS_WS_PLATFORM_SCREEN_IMPL_H_