Beginnings of synchronizing notifications in the notification database.

chrome/browser/notifications/notification_ui_manager.h

Index: chrome/browser/notifications/notification_ui_manager.h
diff --git a/chrome/browser/notifications/notification_ui_manager.h b/chrome/browser/notifications/notification_ui_manager.h
index 182bb443fee5295b5e85b6323b2943b159a20e20..7d52894a7534cd73f4c19c672f5423638087e435 100644
--- a/chrome/browser/notifications/notification_ui_manager.h
+++ b/chrome/browser/notifications/notification_ui_manager.h
@@ -72,6 +72,9 @@ class NotificationUIManager {
       Profile* profile,
       const GURL& source) = 0;
 
+  // Returns the set of all delegate IDs for notifications from |profile|.
+  virtual std::set<std::string> GetAllIdsByProfile(Profile* profile) = 0;
+
   // Removes notifications matching the |source_origin| (which could be an
   // extension ID). Returns true if anything was removed.
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) = 0;