Keep the toolbar overflow menu the same when removing a component action

chrome/browser/ui/toolbar/toolbar_actions_model.h

Index: chrome/browser/ui/toolbar/toolbar_actions_model.h
diff --git a/chrome/browser/ui/toolbar/toolbar_actions_model.h b/chrome/browser/ui/toolbar/toolbar_actions_model.h
index 52785a3be3d235d6a8fca753d1dc6a366669d43a..4bde778a1a752190b5722534609f1f9101073077 100644
--- a/chrome/browser/ui/toolbar/toolbar_actions_model.h
+++ b/chrome/browser/ui/toolbar/toolbar_actions_model.h
@@ -273,6 +273,9 @@ class ToolbarActionsModel
   // enabled extensions.
   const extensions::Extension* GetExtensionById(const std::string& id) const;
 
+  // Returns true if the action is visible on the toolbar.
+  bool IsActionVisible(const std::string& action_id) const;
+
   // Our observers.
   base::ObserverList<Observer> observers_;