[ozone/wayland] Implement basic keyboard handling support

ui/ozone/platform/wayland/BUILD.gn

Index: ui/ozone/platform/wayland/BUILD.gn
diff --git a/ui/ozone/platform/wayland/BUILD.gn b/ui/ozone/platform/wayland/BUILD.gn
index 494ab6005256fd07c39b6b5353e8c5c29bbdac1f..c8bde76aedd0f104eead04cb7c038cfca82a480b 100644
--- a/ui/ozone/platform/wayland/BUILD.gn
+++ b/ui/ozone/platform/wayland/BUILD.gn
@@ -20,6 +20,8 @@ source_set("wayland") {
     "ozone_platform_wayland.h",
     "wayland_connection.cc",
     "wayland_connection.h",
+    "wayland_keyboard.cc",
+    "wayland_keyboard.h",
     "wayland_object.cc",
     "wayland_object.h",
     "wayland_output.cc",
@@ -39,6 +41,8 @@ source_set("wayland") {
     "//third_party/wayland-protocols:xdg_shell_protocol",
     "//ui/display",
     "//ui/events",
+    "//ui/events/ozone:events_ozone_evdev",
+    "//ui/events/ozone:events_ozone_layout",
     "//ui/events/platform",
     "//ui/gfx",
     "//ui/gfx/geometry",
@@ -63,6 +67,7 @@ source_set("wayland_unittests") {
     "fake_server.h",
     "mock_platform_window_delegate.cc",
     "wayland_connection_unittest.cc",
+    "wayland_keyboard_unittest.cc",
     "wayland_pointer_unittest.cc",
     "wayland_surface_factory_unittest.cc",
     "wayland_test.cc",