[MacViews] Get unit_tests linking.

chrome/browser/ui/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
@@ skipping 537 matching lines @@
                        "//chrome")
   }
 }
 
 # In GYP this is part of test_support_common.
 source_set("test_support") {
   testonly = true
 
   sources = [
     "browser.h",
-    "cocoa/extensions/browser_action_test_util_mac.mm",
-    "cocoa/find_bar/find_bar_host_unittest_util_cocoa.mm",
+    "cocoa/cocoa_test_helper.h",
+    "cocoa/cocoa_test_helper.mm",
     "cocoa/run_loop_testing.h",
     "cocoa/run_loop_testing.mm",
     "exclusive_access/fullscreen_controller_state_test.cc",
     "exclusive_access/fullscreen_controller_state_test.h",
     "exclusive_access/fullscreen_controller_state_tests.h",
     "exclusive_access/fullscreen_controller_test.cc",
     "exclusive_access/fullscreen_controller_test.h",
     "find_bar/find_bar_host_unittest_util.h",
     "login/login_prompt_test_utils.cc",
     "login/login_prompt_test_utils.h",
@@ skipping 10 matching lines @@
       "website_settings/mock_permission_bubble_request.cc",
       "website_settings/mock_permission_bubble_request.h",
     ]
   }
 
   if (toolkit_views && (!is_mac || mac_views_browser)) {
     sources += [
       "views/find_bar_host_unittest_util_views.cc",
       "views/toolbar/browser_action_test_util_views.cc",
     ]
+  } else {
+    sources += [
+      "cocoa/extensions/browser_action_test_util_mac.mm",
+      "cocoa/find_bar/find_bar_host_unittest_util_cocoa.mm",
+    ]
   }
 
   if (is_android) {
     sources -= [
       "exclusive_access/fullscreen_controller_state_test.cc",
       "exclusive_access/fullscreen_controller_state_test.h",
       "exclusive_access/fullscreen_controller_state_tests.h",
       "exclusive_access/fullscreen_controller_test.cc",
       "exclusive_access/fullscreen_controller_test.h",
       "test/test_confirm_bubble_model.cc",
       "test/test_confirm_bubble_model.h",
     ]
   }
 
   public_deps = [
     ":ui",
   ]
   deps = [
     "//chrome/app/theme:theme_resources",
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }