Add browser_tests to the GN build.

chrome/browser/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("//components/nacl/nacl_defines.gni")
 
 # //build/config/android/rules.gni imports //tools/grit/grit_rule.gni, which
@@ skipping 941 matching lines @@
       "chromeos/input_method/mock_candidate_window_controller.cc",
       "chromeos/input_method/mock_candidate_window_controller.h",
       "chromeos/input_method/mock_input_method_engine.cc",
       "chromeos/input_method/mock_input_method_engine.h",
       "chromeos/input_method/mock_input_method_manager.cc",
       "chromeos/input_method/mock_input_method_manager.h",
       "chromeos/login/fake_login_utils.cc",
       "chromeos/login/fake_login_utils.h",
       "chromeos/login/mock_login_utils.cc",
       "chromeos/login/mock_login_utils.h",
-      "chromeos/login/users/avatar/mock_user_image_manager.cc",
-      "chromeos/login/users/avatar/mock_user_image_manager.h",
-      "chromeos/login/users/fake_supervised_user_manager.cc",
-      "chromeos/login/users/fake_supervised_user_manager.h",
-      "chromeos/login/users/fake_user_manager.cc",
-      "chromeos/login/users/fake_user_manager.h",
-      "chromeos/login/users/mock_user_manager.cc",
-      "chromeos/login/users/mock_user_manager.h",
+      "chromeos/login/screens/mock_device_disabled_screen_actor.cc",
+      "chromeos/login/screens/mock_device_disabled_screen_actor.h",
       "chromeos/login/test/oobe_screen_waiter.cc",
       "chromeos/login/test/oobe_screen_waiter.h",
       "chromeos/login/test/js_checker.cc",
       "chromeos/login/test/js_checker.h",
       "chromeos/login/ui/mock_login_display.cc",
       "chromeos/login/ui/mock_login_display.h",
       "chromeos/login/ui/mock_login_display_host.cc",
       "chromeos/login/ui/mock_login_display_host.h",
+      "chromeos/login/users/avatar/mock_user_image_manager.cc",
+      "chromeos/login/users/avatar/mock_user_image_manager.h",
+      "chromeos/login/users/fake_supervised_user_manager.cc",
+      "chromeos/login/users/fake_supervised_user_manager.h",
+      "chromeos/login/users/fake_user_manager.cc",
+      "chromeos/login/users/fake_user_manager.h",
+      "chromeos/login/users/mock_user_manager.cc",
+      "chromeos/login/users/mock_user_manager.h",
       "chromeos/net/network_portal_detector_test_utils.cc",
       "chromeos/net/network_portal_detector_test_utils.h",
       "chromeos/policy/cloud_external_data_manager_base_test_util.cc",
       "chromeos/policy/cloud_external_data_manager_base_test_util.h",
       "chromeos/policy/device_policy_builder.cc",
       "chromeos/policy/device_policy_builder.h",
       "chromeos/policy/fake_device_cloud_policy_initializer.cc",
       "chromeos/policy/fake_device_cloud_policy_initializer.h",
       "chromeos/policy/stub_enterprise_install_attributes.cc",
       "chromeos/policy/stub_enterprise_install_attributes.h",
@@ skipping 37 matching lines @@
       "extensions/extension_notification_observer.cc",
       "extensions/extension_notification_observer.h",
       "extensions/mock_extension_special_storage_policy.cc",
       "extensions/mock_extension_special_storage_policy.h",
       "extensions/test_blacklist.cc",
       "extensions/test_blacklist.h",
       "extensions/test_blacklist_state_fetcher.cc",
       "extensions/test_blacklist_state_fetcher.h",
       "extensions/test_extension_environment.cc",
       "extensions/test_extension_environment.h",
+      "extensions/test_extension_dir.cc",
+      "extensions/test_extension_dir.h",
       "extensions/test_extension_prefs.cc",
       "extensions/test_extension_prefs.h",
       "extensions/test_extension_service.cc",
       "extensions/test_extension_service.h",
       "extensions/test_extension_system.cc",
       "extensions/test_extension_system.h",
       "media_galleries/media_galleries_test_util.cc",
       "media_galleries/media_galleries_test_util.h",
     ]
     deps += [ "//components/storage_monitor:test_support" ]
   }
 
   if (enable_mdns) {
     sources += [
       "local_discovery/test_service_discovery_client.cc",
       "local_discovery/test_service_discovery_client.h",
     ]
   }
 
   if (enable_app_list) {
     sources += [
       "ui/app_list/test/chrome_app_list_test_support.cc",
       "ui/app_list/test/chrome_app_list_test_support.h",
+      "ui/app_list/test/test_app_list_controller_delegate.cc",
+      "ui/app_list/test/test_app_list_controller_delegate.h",
     ]
   }
 
   if (enable_wifi_bootstrapping) {
     sources += [
       "local_discovery/wifi/mock_wifi_manager.cc",
       "local_discovery/wifi/mock_wifi_manager.h",
     ]
   }
 }