Use customization mode by default in permission bubbles

chrome/browser/ui/website_settings/permission_bubble_manager.h

Index: chrome/browser/ui/website_settings/permission_bubble_manager.h
diff --git a/chrome/browser/ui/website_settings/permission_bubble_manager.h b/chrome/browser/ui/website_settings/permission_bubble_manager.h
index 414184b7e478c891b7557b6c489211d42e513b80..15d384fa16b48ab24ecf9bcaba85c45e91f4444c 100644
--- a/chrome/browser/ui/website_settings/permission_bubble_manager.h
+++ b/chrome/browser/ui/website_settings/permission_bubble_manager.h
@@ -85,7 +85,6 @@ class PermissionBubbleManager
 
   // PermissionBubbleView::Delegate:
   void ToggleAccept(int request_index, bool new_value) override;
-  void SetCustomizationMode() override;
   void Accept() override;
   void Deny() override;
   void Closing() override;
@@ -137,7 +136,6 @@ class PermissionBubbleManager
   bool request_url_has_loaded_;
 
   std::vector<bool> accept_states_;
-  bool customization_mode_;
 
   base::WeakPtrFactory<PermissionBubbleManager> weak_factory_;
 };