Allow permission bubbles to participate in key event dispatch as if they were a Browser.

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index 78d0e1c37b78a5a8ee90678ea97c407a88bee439..dabf5e7ee660967e3ec58551b6937f3c71083504 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -301,6 +301,8 @@ if (!is_android) {
     testonly = true
 
     sources = [
+      "../browser/permissions/permission_request_manager_test_api.cc",
+      "../browser/permissions/permission_request_manager_test_api.h",
       "base/in_process_browser_test.cc",
       "base/in_process_browser_test.h",
       "base/in_process_browser_test_mac.cc",
@@ -386,6 +388,7 @@ if (!is_android) {
       "../browser/ui/browser_focus_uitest.cc",
       "../browser/ui/cocoa/apps/app_shim_menu_controller_mac_interactive_uitest.mm",
       "../browser/ui/cocoa/apps/quit_with_apps_controller_mac_interactive_uitest.mm",
+      "../browser/ui/cocoa/website_settings/permission_bubble_cocoa_interactive_uitest.mm",
       "../browser/ui/exclusive_access/flash_fullscreen_interactive_browsertest.cc",
       "../browser/ui/exclusive_access/fullscreen_controller_interactive_browsertest.cc",
       "../browser/ui/exclusive_access/fullscreen_controller_state_interactive_browsertest.cc",