Move some file api files to fileapi folder

storage/browser/blob/file_stream_reader.cc

Index: storage/browser/blob/file_stream_reader.cc
diff --git a/storage/browser/blob/file_stream_reader.cc b/storage/browser/blob/file_stream_reader.cc
deleted file mode 100644
index 5c4aaa28eba161f8885f30bfcad0c292a1c0f3e5..0000000000000000000000000000000000000000
--- a/storage/browser/blob/file_stream_reader.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 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 "storage/browser/blob/file_stream_reader.h"
-
-#include "base/time/time.h"
-
-namespace storage {
-
-// Verify if the underlying file has not been modified.
-bool FileStreamReader::VerifySnapshotTime(
-    const base::Time& expected_modification_time,
-    const base::File::Info& file_info) {
-  return expected_modification_time.is_null() ||
-         expected_modification_time.ToTimeT() ==
-             file_info.last_modified.ToTimeT();
-}
-
-}  // namespace storage