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

ui/chromeos/BUILD.gn

Index: ui/chromeos/BUILD.gn
diff --git a/ui/chromeos/BUILD.gn b/ui/chromeos/BUILD.gn
index 9c27cde2cde6c5214ea055c9f02abf4148feef81..8d6767abdcf645a1b0f9ba3b74b3bd643cb9a926 100644
--- a/ui/chromeos/BUILD.gn
+++ b/ui/chromeos/BUILD.gn
@@ -52,3 +52,28 @@ component("ui_chromeos") {
   ]
   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",
+  ]
+}