Remove dead code from IDB (chromium side)

content/browser/indexed_db/indexed_db_backing_store.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/indexed_db/indexed_db_backing_store.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_piece.h"
@@ skipping 784 matching lines @@
   if (int_version == IndexedDBDatabaseMetadata::NO_INT_VERSION)
     int_version = IndexedDBDatabaseMetadata::DEFAULT_INT_VERSION;
   DCHECK_GE(int_version, 0) << "int_version was " << int_version;
   PutVarInt(transaction->transaction(),
             DatabaseMetaDataKey::Encode(row_id,
                                         DatabaseMetaDataKey::USER_INT_VERSION),
             int_version);
   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) {
   scoped_ptr<LevelDBIterator> it = transaction->CreateIterator();
   for (it->Seek(begin); it->IsValid() && CompareKeys(it->Key(), end) < 0;
        it->Next())
     transaction->Remove(it->Key());
 }
 
 bool IndexedDBBackingStore::DeleteDatabase(const string16& name) {
@@ skipping 1748 matching lines @@
 }
 
 void IndexedDBBackingStore::Transaction::Rollback() {
   IDB_TRACE("IndexedDBBackingStore::Transaction::Rollback");
   DCHECK(transaction_.get());
   transaction_->Rollback();
   transaction_ = NULL;
 }
 
 }  // namespace content