Implement delete methods for the various CannedBrowsingDataHelpers.

chrome/browser/browsing_data/browsing_data_local_storage_helper.h

Index: chrome/browser/browsing_data/browsing_data_local_storage_helper.h
diff --git a/chrome/browser/browsing_data/browsing_data_local_storage_helper.h b/chrome/browser/browsing_data/browsing_data_local_storage_helper.h
index ba67f5952258a18c619fac1d0561623115fa8fab..95c491c71f641cfb4923bfd7fba0c1513e89e1a0 100644
--- a/chrome/browser/browsing_data/browsing_data_local_storage_helper.h
+++ b/chrome/browser/browsing_data/browsing_data_local_storage_helper.h
@@ -100,13 +100,11 @@ class CannedBrowsingDataLocalStorageHelper
   virtual void StartFetching(
       const base::Callback<void(const std::list<LocalStorageInfo>&)>& callback)
           OVERRIDE;
+  virtual void DeleteOrigin(const GURL& origin) OVERRIDE;
 
  private:
   virtual ~CannedBrowsingDataLocalStorageHelper();
 
-  // Convert the pending local storage info to local storage info objects.
-  void ConvertPendingInfo();
-
   std::set<GURL> pending_local_storage_info_;
 
   Profile* profile_;