Move some file api files to fileapi folder

storage/browser/fileapi/plugin_private_file_system_backend.cc

 // Copyright 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 "storage/browser/fileapi/plugin_private_file_system_backend.h"
 
 #include <map>
 
 #include "base/stl_util.h"
 #include "base/synchronization/lock.h"
 #include "base/task_runner_util.h"
 #include "net/base/net_util.h"
-#include "storage/browser/blob/file_stream_reader.h"
 #include "storage/browser/fileapi/async_file_util_adapter.h"
+#include "storage/browser/fileapi/file_stream_reader.h"
 #include "storage/browser/fileapi/file_stream_writer.h"
 #include "storage/browser/fileapi/file_system_context.h"
 #include "storage/browser/fileapi/file_system_operation.h"
 #include "storage/browser/fileapi/file_system_operation_context.h"
 #include "storage/browser/fileapi/file_system_options.h"
 #include "storage/browser/fileapi/isolated_context.h"
 #include "storage/browser/fileapi/obfuscated_file_util.h"
 #include "storage/browser/fileapi/quota/quota_reservation.h"
 #include "storage/common/fileapi/file_system_util.h"
 
@@ skipping 263 matching lines @@
     FileSystemType type) const {
   return NULL;
 }
 
 ObfuscatedFileUtil* PluginPrivateFileSystemBackend::obfuscated_file_util() {
   return static_cast<ObfuscatedFileUtil*>(
       static_cast<AsyncFileUtilAdapter*>(file_util_.get())->sync_file_util());
 }
 
 }  // namespace storage