[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/fileapi/backend_delegate.cc

 // 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 "chrome/browser/chromeos/file_system_provider/fileapi/backend_delegate.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/buffering_file_stream_reader.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/buffering_file_stream_writer.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/file_stream_reader.h"
@@ skipping 24 matching lines @@
 BackendDelegate::BackendDelegate()
     : async_file_util_(new internal::ProviderAsyncFileUtil),
       watcher_manager_(new WatcherManager) {
 }
 
 BackendDelegate::~BackendDelegate() {}
 
 storage::AsyncFileUtil* BackendDelegate::GetAsyncFileUtil(
     storage::FileSystemType type) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  DCHECK_EQ(storage::kFileSystemTypeProvided, type);
+  DCHECK(storage::kFileSystemTypeProvided == type ||
+         storage::kFileSystemTypePluginProvided == type);
   return async_file_util_.get();
 }
 
 scoped_ptr<storage::FileStreamReader> BackendDelegate::CreateFileStreamReader(
     const storage::FileSystemURL& url,
     int64 offset,
     int64 max_bytes_to_read,
     const base::Time& expected_modification_time,
     storage::FileSystemContext* context) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  DCHECK_EQ(storage::kFileSystemTypeProvided, url.type());
+  DCHECK(storage::kFileSystemTypeProvided == url.type() ||
+         storage::kFileSystemTypePluginProvided == url.type());
 
   return scoped_ptr<storage::FileStreamReader>(new BufferingFileStreamReader(
       scoped_ptr<storage::FileStreamReader>(new FileStreamReader(
           context, url, offset, expected_modification_time)),
       kReaderBufferSize,
       max_bytes_to_read));
 }
 
 scoped_ptr<storage::FileStreamWriter> BackendDelegate::CreateFileStreamWriter(
     const storage::FileSystemURL& url,
     int64 offset,
     storage::FileSystemContext* context) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  DCHECK_EQ(storage::kFileSystemTypeProvided, url.type());
+  DCHECK(storage::kFileSystemTypeProvided == url.type() ||
+         storage::kFileSystemTypePluginProvided == url.type());
 
   return scoped_ptr<storage::FileStreamWriter>(new BufferingFileStreamWriter(
       scoped_ptr<storage::FileStreamWriter>(new FileStreamWriter(url, offset)),
       kWriterBufferSize));
 }
 
 storage::WatcherManager* BackendDelegate::GetWatcherManager(
     storage::FileSystemType type) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  DCHECK_EQ(storage::kFileSystemTypeProvided, type);
+  DCHECK(storage::kFileSystemTypeProvided == type ||
+         storage::kFileSystemTypePluginProvided == type);
   return watcher_manager_.get();
 }
 
 void BackendDelegate::GetRedirectURLForContents(
     const storage::FileSystemURL& url,
     const storage::URLCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  DCHECK_EQ(storage::kFileSystemTypeProvided, url.type());
+  DCHECK(storage::kFileSystemTypeProvided == url.type() ||
+         storage::kFileSystemTypePluginProvided == url.type() );
   callback.Run(GURL());
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos