Make ToolbarActionsModel ignore calls to AddComponentAction() before initialization

chrome/browser/ui/toolbar/toolbar_actions_model.cc

Index: chrome/browser/ui/toolbar/toolbar_actions_model.cc
diff --git a/chrome/browser/ui/toolbar/toolbar_actions_model.cc b/chrome/browser/ui/toolbar/toolbar_actions_model.cc
index 3d586be3b35bc29fd88fcaef625f1948720e7720..bdf9afb99d4011dcb5bae5c8f5856709c84b196d 100644
--- a/chrome/browser/ui/toolbar/toolbar_actions_model.cc
+++ b/chrome/browser/ui/toolbar/toolbar_actions_model.cc
@@ -635,6 +635,11 @@ bool ToolbarActionsModel::HasComponentAction(
 }
 
 void ToolbarActionsModel::AddComponentAction(const std::string& action_id) {
+  if (!actions_initialized_) {
+    // TODO(crbug.com/660972): Add these component actions at initialization.
+    return;
+  }
+
   DCHECK(use_redesign_);
   ToolbarItem component_item(action_id, COMPONENT_ACTION);
   DCHECK(!HasItem(component_item));