ozone/platform/wayland: Add support for wl_output_interface

ui/ozone/platform/wayland/wayland_display_unittest.cc

 // 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.
 
 #include <wayland-server-core.h>
 #include <xdg-shell-unstable-v5-server-protocol.h>
 
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/ozone/platform/wayland/fake_server.h"
 #include "ui/ozone/platform/wayland/wayland_display.h"
+#include "ui/ozone/platform/wayland/wayland_screen.h"
 
 namespace ui {
 
 TEST(WaylandDisplayTest, UseUnstableVersion) {
   base::MessageLoopForUI message_loop;
   wl::FakeServer server;
   EXPECT_CALL(*server.xdg_shell(),
               UseUnstableVersion(XDG_SHELL_VERSION_CURRENT));
   ASSERT_TRUE(server.Start());
   WaylandDisplay display;
@@ skipping 16 matching lines @@
   server.Pause();
 
   xdg_shell_send_ping(server.xdg_shell()->resource(), 1234);
   EXPECT_CALL(*server.xdg_shell(), Pong(1234));
 
   server.Resume();
   base::RunLoop().RunUntilIdle();
   server.Pause();
 }
 
+TEST(WaylandDisplayTest, Output) {
+  base::MessageLoopForUI message_loop;
+  display::Display fake_display(1, gfx::Rect(0, 0, 800, 600));
+  wl::FakeServer server;
+  server.AddDisplay(fake_display);
+  ASSERT_TRUE(server.Start());
+  WaylandDisplay display;
+  ASSERT_TRUE(display.Initialize());
+  display.StartProcessingEvents();
+
+  display.PrimaryScreen()->WaitforOutputAvailable();
+
+  ASSERT_TRUE(display.GetScreenList().size() == 1);
+  WaylandScreen* screen = display.PrimaryScreen();
+  ASSERT_TRUE(screen->Geometry().width() == 800);
+  ASSERT_TRUE(screen->Geometry().height() == 600);
+
+  server.Resume();
+  base::RunLoop().RunUntilIdle();
+  server.Pause();
+}
+
 }  // namespace ui