[gtk] re-acquire input grab on bubbles when another widget

chrome/browser/ui/gtk/website_settings/permission_selector_observer.h

Index: chrome/browser/ui/gtk/website_settings/permission_selector_observer.h
diff --git a/chrome/browser/ui/gtk/website_settings/permission_selector_observer.h b/chrome/browser/ui/gtk/website_settings/permission_selector_observer.h
index 224aee06477af7eebb1a33bf23b137ce08791c24..e568af117498c1c204ed42c213e56aeb36a79a18 100644
--- a/chrome/browser/ui/gtk/website_settings/permission_selector_observer.h
+++ b/chrome/browser/ui/gtk/website_settings/permission_selector_observer.h
@@ -13,13 +13,6 @@ class PermissionSelectorObserver {
   // |selector|.
   virtual void OnPermissionChanged(PermissionSelector* selector) = 0;
 
-  // GtkComboBox grabs the keyboard and pointer when it displays its popup,
-  // which steals the grabs that BubbleGtk had installed. When the combobox
-  // popup is hidden, we notify BubbleGtk so it can try to reacquire the grabs
-  // (otherwise, GTK won't activate our widgets when the user clicks in them).
-  // OnComboboxShown is called when a combobox popup is closed.
-  virtual void OnComboboxShown() = 0;
-
  protected:
   virtual ~PermissionSelectorObserver() {}
 };