feat: add tray.closeContextMenu() (#21807)

shell/browser/ui/tray_icon_cocoa.mm

@@ -194,6 +194,12 @@
   }
 }
 
+- (void)closeContextMenu {
+  if (menuController_) {
+    [menuController_ cancel];
+  }
+}
+
 - (void)rightMouseUp:(NSEvent*)event {
   trayIcon_->NotifyRightClicked(
       gfx::ScreenRectFromNSRect(event.window.frame),
@@ -315,6 +321,10 @@ void TrayIconCocoa::PopUpContextMenu(const gfx::Point& pos,
                      base::Unretained(menu_model)));
 }
 
+void TrayIconCocoa::CloseContextMenu() {
+  [status_item_view_ closeContextMenu];
+}
+
 void TrayIconCocoa::SetContextMenu(AtomMenuModel* menu_model) {
   if (menu_model) {
     // Create native menu.