Mozart: Rename ui:unittests to ui:apptests since that's what it is.

mojo/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/nacl/config.gni")
 import("//build/module_args/mojo.gni")
 import("//mojo/public/mojo.gni")
 import("//testing/test.gni")
 
 declare_args() {
@@ skipping 55 matching lines @@
     "//mojo/edk:tests",
     "//mojo/file_utils:file_utils_apptests",
     "//mojo/gles2:mgl_unittests",
     "//mojo/public/cpp/bindings/tests:versioning_apptests",
     "//mojo/public/platform/native:tests",
     "//mojo/services/files/c:apptests",
     "//mojo/services/files/cpp:files_impl_apptests",
     "//mojo/services/gfx/images/cpp:image_pipe_apptest",
     "//mojo/services/log/cpp:log_client_apptests",
     "//mojo/tools:message_generator",
-    "//mojo/ui:unittests",
+    "//mojo/ui:apptests",
   ]
 
   if (mojo_use_prebuilt_network_service) {
     deps += [ "//mojo/public/tools:copy_network_service_apptests" ]
   }
 }
 
 # This archives the system thunks implementation for exporting to SDK consumers.
 static_library("system_thunks") {
   complete_static_lib = true
@@ skipping 77 matching lines @@
     "//mojo/public/cpp/utility/tests",
   ]
 }
 
 test("mojo_system_impl_private_unittests") {
   deps = [
     "//mojo/edk/test:run_all_unittests",
     "//mojo/public/platform/native:system_impl_private_tests",
   ]
 }