If force-sign-in policy is enabled, popup warning dialog before window closing if auth token becom…

chrome/browser/ui/BUILD.gn

Index: chrome/browser/ui/BUILD.gn
diff --git a/chrome/browser/ui/BUILD.gn b/chrome/browser/ui/BUILD.gn
index b70cd13b7cd43002f9591f3da793bda16143cd9d..42df8f94ca42df4461097997d012d6d2b08bd723 100644
--- a/chrome/browser/ui/BUILD.gn
+++ b/chrome/browser/ui/BUILD.gn
@@ -1632,6 +1632,10 @@ split_static_library("ui") {
         "views/frame/opaque_browser_frame_view_linux.h",
         "views/frame/opaque_browser_frame_view_platform_specific.cc",
         "views/frame/opaque_browser_frame_view_platform_specific.h",
+        "views/profiles/force_signout_dialog.cc",
+        "views/profiles/force_signout_dialog.h",
+        "views/profiles/force_signout_dialog_view.cc",
+        "views/profiles/force_signout_dialog_view.h",
         "views/profiles/profile_chooser_view.cc",
         "views/profiles/profile_chooser_view.h",
         "views/screen_capture_notification_ui_views.cc",
@@ -1721,6 +1725,8 @@ split_static_library("ui") {
         "views/bookmarks/bookmark_menu_delegate.cc",
         "views/bookmarks/bookmark_menu_delegate.h",
         "views/browser_dialogs_views.cc",
+        "views/browser_modal_dialog.cc",
+        "views/browser_modal_dialog.h",
         "views/certificate_selector.cc",
         "views/certificate_selector.h",
         "views/certificate_viewer_win.cc",
@@ -1972,6 +1978,7 @@ split_static_library("ui") {
         ]
       }
     }
+
     if (use_ash) {
       sources += [
         "views/frame/browser_frame_ash.cc",