[WIP] Make content_shell run under Wayland

ui/views/widget/desktop_aura/desktop_screen_wayland.h

Index: ui/views/widget/desktop_aura/desktop_screen_wayland.h
diff --git a/ui/views/widget/desktop_aura/desktop_screen_wayland.h b/ui/views/widget/desktop_aura/desktop_screen_wayland.h
new file mode 100644
index 0000000000000000000000000000000000000000..4882bff5fa6cb153a018e5e429590eee960a5176
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+++ b/ui/views/widget/desktop_aura/desktop_screen_wayland.h
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+// 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 UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_WAYLAND_H_
+#define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_WAYLAND_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/run_loop.h"
+#include "ui/display/display.h"
+#include "ui/display/display_change_notifier.h"
+#include "ui/display/screen.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/views/views_export.h"
+
+namespace aura {
+class Window;
+}
+
+namespace views {
+
+class VIEWS_EXPORT DesktopScreenWayland
+    : public display::Screen {
+ public:
+  DesktopScreenWayland();
+  ~DesktopScreenWayland() override;
+
+ private:
+  // Overridden from display::Screen:
+  gfx::Point GetCursorScreenPoint() override;
+  bool IsWindowUnderCursor(gfx::NativeWindow) override;
+  gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point&) override;
+  int GetNumDisplays() const override;
+  std::vector<display::Display> GetAllDisplays() const override;
+  display::Display GetDisplayNearestWindow(
+      gfx::NativeView) const override;
+  display::Display GetDisplayNearestPoint(
+      const gfx::Point&) const override;
+  display::Display GetDisplayMatching(
+      const gfx::Rect&) const override;
+  display::Display GetPrimaryDisplay() const override;
+  void AddObserver(display::DisplayObserver*) override;
+  void RemoveObserver(display::DisplayObserver*) override;
+  void OnOutputGeometryChanged(int32_t name, const gfx::Rect&) override;
+  void WaitForScreenSizeAvailable() override;
+
+  // The display objects we present to chrome.
+  std::vector<display::Display> displays_;
+
+  display::DisplayChangeNotifier change_notifier_;
+
+  DISALLOW_COPY_AND_ASSIGN(DesktopScreenWayland);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_WAYLAND_H_