GN: Add missing dependency for wm_unittests on ui_test_pak

ui/wm/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/ui.gni")
 import("//testing/test.gni")
 
 component("wm") {
   sources = [
     "core/accelerator_delegate.h",
@@ skipping 131 matching lines @@
     "core/image_grid_unittest.cc",
     "core/nested_accelerator_controller_unittest.cc",
     "core/shadow_controller_unittest.cc",
     "core/transient_window_manager_unittest.cc",
     "core/transient_window_stacking_client_unittest.cc",
     "core/visibility_controller_unittest.cc",
     "core/window_animations_unittest.cc",
     "test/run_all_unittests.cc",
   ]
 
-  data = [
-    "$root_out_dir/ui_test.pak",
-  ]
+  data_deps = [ "//ui/resources:ui_test_pak" ]
 
   deps = [
     ":test_support",
     ":wm",
     "//base",
     "//base/test:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/aura:test_support",
     "//ui/base:test_support",
     "//ui/base/ime",
     "//ui/compositor:test_support",
     "//ui/events:test_support",
     "//ui/events/platform",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
   ]
 }