Restore the iframe behavior of notification permissions

chrome/browser/content_settings/permission_context_base.h

Index: chrome/browser/content_settings/permission_context_base.h
diff --git a/chrome/browser/content_settings/permission_context_base.h b/chrome/browser/content_settings/permission_context_base.h
index 1db872b39c4e903aa901e2839f0d7660dc15da13..bb5c68a96114631f8536d5ef36eb7fa137238084 100644
--- a/chrome/browser/content_settings/permission_context_base.h
+++ b/chrome/browser/content_settings/permission_context_base.h
@@ -98,11 +98,14 @@ class PermissionContextBase : public KeyedService {
   // Return an instance of the infobar queue controller, creating it if needed.
   PermissionQueueController* GetQueueController();
 
+  // Store the decided permission as a content setting.
+  // virtual since the permission might be stored with different restrictions
+  // (for example for desktop notifications).
+  virtual void UpdateContentSetting(const GURL& requesting_origin,
+                                    const GURL& embedder_origin,
+                                    bool allowed);
+
  private:
-  void UpdateContentSetting(
-      const GURL& requesting_origin,
-      const GURL& embedder_origin,
-      bool allowed);
 
   // Called when a bubble is no longer used so it can be cleaned up.
   void CleanUpBubble(const PermissionRequestID& id);