Add "Sign In" button to the account chooser on Mac.

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 626 matching lines @@
     "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_handler_test_utils.cc",
     "login/login_handler_test_utils.h",
-    "passwords/manage_passwords_ui_controller_mock.cc",
-    "passwords/manage_passwords_ui_controller_mock.h",
     "test/test_confirm_bubble_model.cc",
     "test/test_confirm_bubble_model.h",
     "toolbar/test_toolbar_action_view_controller.cc",
     "toolbar/test_toolbar_action_view_controller.h",
   ]
 
   if (!is_ios && !is_android) {
     sources += [
+      "passwords/manage_passwords_ui_controller_mock.cc",
+      "passwords/manage_passwords_ui_controller_mock.h",
+      "passwords/password_dialog_controller_mock.cc",
+      "passwords/password_dialog_controller_mock.h",
       "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",
     ]
@@ skipping 24 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }