Move the tests in ui/chromeos to a new target: ui_chromeos_unittests

ui/chromeos/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.
 
 component("ui_chromeos") {
   sources = [
     "accessibility_types.h",
     "ime/candidate_view.cc",
     "ime/candidate_view.h",
     "ime/candidate_window_view.cc",
@@ skipping 34 matching lines @@
     "//ui/chromeos/resources",
     "//ui/chromeos/strings",
     "//ui/events",
     "//ui/events:gesture_detection",
     "//ui/message_center",
     "//ui/views",
     "//ui/wm",
   ]
   defines = [ "UI_CHROMEOS_IMPLEMENTATION" ]
 }
+
+test("ui_chromeos_unittests") {
+  sources = [
+    "../chromeos/ime/candidate_view_unittest.cc",
+    "../chromeos/ime/candidate_window_view_unittest.cc",
+    "../chromeos/ime/input_method_menu_item_unittest.cc",
+    "../chromeos/ime/input_method_menu_manager_unittest.cc",
+    "../chromeos/network/network_state_notifier_unittest.cc",
+    "../chromeos/touch_exploration_controller_unittest.cc",
+    "run_all_unittests.cc",
+  ]
+  deps = [
+    ":ui_chromeos",
+    "//base/test:test_support",
+    "//chromeos",
+    "//skia",
+    "//testing/gtest",
+    "//ui/aura:test_support",
+    "//ui/compositor",
+    "//ui/message_center",
+    "//ui/resources:ui_test_pak",
+    "//ui/views",
+    "//ui/views:test_support",
+  ]
+}