Move extensions storage API implementation to src/extensions

chrome/browser/extensions/api/storage/value_store_cache.cc

Index: chrome/browser/extensions/api/storage/value_store_cache.cc
diff --git a/chrome/browser/extensions/api/storage/value_store_cache.cc b/chrome/browser/extensions/api/storage/value_store_cache.cc
deleted file mode 100644
index bf68f7f9244d919c9c6c2112d1f172a24261edf9..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/storage/value_store_cache.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012 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 "chrome/browser/extensions/api/storage/value_store_cache.h"
-
-namespace extensions {
-
-ValueStoreCache::~ValueStoreCache() {}
-
-void ValueStoreCache::ShutdownOnUI() {}
-
-}  // namespace extensions