Remove dead code from IDB (chromium side)

content/browser/indexed_db/indexed_db_backing_store.cc

Index: content/browser/indexed_db/indexed_db_backing_store.cc
diff --git a/content/browser/indexed_db/indexed_db_backing_store.cc b/content/browser/indexed_db/indexed_db_backing_store.cc
index 28676d6586c42d85d036d4e9ebcae8f6370c46d8..17ae1994ed693f8fec850bb419c0140da46fdb64 100644
--- a/content/browser/indexed_db/indexed_db_backing_store.cc
+++ b/content/browser/indexed_db/indexed_db_backing_store.cc
@@ -802,17 +802,6 @@ bool IndexedDBBackingStore::UpdateIDBDatabaseIntVersion(
   return true;
 }
 
-bool IndexedDBBackingStore::UpdateIDBDatabaseMetaData(
-    IndexedDBBackingStore::Transaction* transaction,
-    int64 row_id,
-    const string16& version) {
-  PutString(
-      transaction->transaction(),
-      DatabaseMetaDataKey::Encode(row_id, DatabaseMetaDataKey::USER_VERSION),
-      version);
-  return true;
-}
-
 static void DeleteRange(LevelDBTransaction* transaction,
                         const std::string& begin,
                         const std::string& end) {