components: Add Exosphere component.

components/exo/wayland/BUILD.gn

 # Copyright 2015 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.
 
-static_library("mime_util") {
+source_set("wayland") {
   sources = [
-    "mime_util.cc",
-    "mime_util.h",
+    "scoped_wl_types.cc",
+    "scoped_wl_types.h",
+    "server.cc",
+    "server.h",
   ]
 
+  defines = [ "EXO_IMPLEMENTATION" ]
+
   deps = [
     "//base",
-    "//net",
+    "//components/exo",
+    "//skia",
+    "//third_party/wayland:wayland_server",
   ]
-
-  # iOS doesn't use and must not depend on //media
-  if (!is_ios) {
-    deps += [ "//media" ]
-  }
 }
 
 source_set("unit_tests") {
   testonly = true
+
   sources = [
-    "mime_util_unittest.cc",
+    "server_unittest.cc",
   ]
 
   deps = [
-    ":mime_util",
-    "//base",
     "//testing/gtest",
+    "//third_party/wayland:wayland_client",
+    ":wayland",
   ]
 }