ozone/platform/wayland: Add support for wl_output_interface

ui/ozone/platform/wayland/fake_server.h

Index: ui/ozone/platform/wayland/fake_server.h
diff --git a/ui/ozone/platform/wayland/fake_server.h b/ui/ozone/platform/wayland/fake_server.h
index 499d84f436392484008ba7f86090ac799f258f20..aee287127ac1c238ad2179d54b12b28d89696f73 100644
--- a/ui/ozone/platform/wayland/fake_server.h
+++ b/ui/ozone/platform/wayland/fake_server.h
@@ -12,6 +12,7 @@
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
+#include "ui/display/display.h"
 
 struct wl_client;
 struct wl_display;
@@ -127,6 +128,19 @@ class MockCompositor : public Global {
   DISALLOW_COPY_AND_ASSIGN(MockCompositor);
 };
 
+class MockOutput : public Global {
+ public:
+  MockOutput();
+  ~MockOutput() override;
+  void SetDisplay(const display::Display& display) { fake_display_ = display; }
+  const display::Display& Display() { return fake_display_; }
+
+ private:
+  display::Display fake_display_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockOutput);
+};
+
 class MockSeat : public Global {
  public:
   MockSeat();
@@ -172,6 +186,8 @@ class FakeServer : public base::Thread, base::MessagePumpLibevent::Watcher {
   // Resume the server after flushing client connections.
   void Resume();
 
+  void AddDisplay(const display::Display&);
+
   template <typename T>
   T* GetObject(uint32_t id) {
     wl_resource* resource = wl_client_get_object(client_, id);
@@ -199,6 +215,7 @@ class FakeServer : public base::Thread, base::MessagePumpLibevent::Watcher {
   bool paused_ = false;
 
   MockCompositor compositor_;
+  MockOutput output_;
   MockSeat seat_;
   MockXdgShell xdg_shell_;