Stub for Privet file system

chrome/browser/local_discovery/storage/privet_filesystem_backend.h

+// 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.
+
+#ifndef CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_BACKEND_H_
+#define CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_BACKEND_H_
+
+#include <string>
+#include <vector>
+
+#include "base/memory/ref_counted.h"
+#include "webkit/browser/blob/file_stream_reader.h"
+#include "webkit/browser/fileapi/external_mount_points.h"
+#include "webkit/browser/fileapi/file_stream_writer.h"
+#include "webkit/browser/fileapi/file_system_backend.h"
+
+namespace local_discovery {
+
+class PrivetFileSystemAsyncUtil;
+
+class PrivetFileSystemBackend : public fileapi::ExternalFileSystemBackend {
+ public:
+  explicit PrivetFileSystemBackend(fileapi::ExternalMountPoints* mount_points);
+  virtual ~PrivetFileSystemBackend();
+
+  // FileSystemBackend implementation.
+  virtual bool CanHandleType(fileapi::FileSystemType type) const OVERRIDE;
+  virtual void Initialize(fileapi::FileSystemContext* context) OVERRIDE;
+
+  virtual void OpenFileSystem(
+      const GURL& origin_url,
+      fileapi::FileSystemType type,
+      fileapi::OpenFileSystemMode mode,
+      const OpenFileSystemCallback& callback) OVERRIDE;
+
+  virtual fileapi::AsyncFileUtil* GetAsyncFileUtil(
+      fileapi::FileSystemType type) OVERRIDE;
+  virtual fileapi::CopyOrMoveFileValidatorFactory*
+      GetCopyOrMoveFileValidatorFactory(
+          fileapi::FileSystemType type,
+          base::PlatformFileError* error_code) OVERRIDE;
+
+  virtual fileapi::FileSystemOperation* CreateFileSystemOperation(
+      const fileapi::FileSystemURL& url,
+      fileapi::FileSystemContext* context,
+      base::PlatformFileError* error_code) const OVERRIDE;
+
+  virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
+      const fileapi::FileSystemURL& url,
+      int64 offset,
+      const base::Time& expected_modification_time,
+      fileapi::FileSystemContext* context) const OVERRIDE;
+
+  virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter(
+      const fileapi::FileSystemURL& url,
+      int64 offset,
+      fileapi::FileSystemContext* context) const OVERRIDE;
+
+  virtual fileapi::FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
+
+  // ExternalFileSystemBackend implementation.

[kinuko, 2014/01/09 04:27:41]

It's a bit sad to have more filesystems that depend on this.. are these methods
hooked into the existing volume code like that of chromeos::FileSystemBackend?

[Noam Samuel, 2014/01/09 18:59:15]

Hm, on second look this might not be needed. When I started this stub I assumed
I'd be making the FS with a type of "external", but since that doesn't seem to
be the case, maybe I can remove this interface.

+  virtual bool IsAccessAllowed(
+      const fileapi::FileSystemURL& url) const OVERRIDE;
+  virtual std::vector<base::FilePath> GetRootDirectories() const OVERRIDE;
+  virtual void GrantFullAccessToExtension(
+      const std::string& extension_id) OVERRIDE;
+  virtual void GrantFileAccessToExtension(
+      const std::string& extension_id,
+      const base::FilePath& virtual_path) OVERRIDE;
+  virtual void RevokeAccessForExtension(
+        const std::string& extension_id) OVERRIDE;
+  virtual bool GetVirtualPath(const base::FilePath& file_system_path,
+                              base::FilePath* virtual_path) OVERRIDE;
+
+ private:
+  // User mount points.
+  scoped_refptr<fileapi::ExternalMountPoints> mount_points_;
+  scoped_ptr<PrivetFileSystemAsyncUtil> async_util_;
+};
+
+}  // namespace local_discovery
+
+#endif  // CHROME_BROWSER_LOCAL_DISCOVERY_STORAGE_PRIVET_FILESYSTEM_BACKEND_H_