Isolated FS for media devices.

webkit/fileapi/media/media_device_interface.h

Index: webkit/fileapi/media/media_device_interface.h
diff --git a/webkit/fileapi/media/media_device_interface.h b/webkit/fileapi/media/media_device_interface.h
new file mode 100644
index 0000000000000000000000000000000000000000..a9db7e9219cf6bc85791f07091dc491b71e27b77
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+++ b/webkit/fileapi/media/media_device_interface.h
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+// 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.
+
+#ifndef WEBKIT_FILEAPI_MEDIA_MEDIA_DEVICE_INTERFACE_H_
+#define WEBKIT_FILEAPI_MEDIA_MEDIA_DEVICE_INTERFACE_H_
+
+#include "base/file_path.h"
+#include "base/platform_file.h"
+#include "base/timer.h"
+#include "webkit/fileapi/file_system_file_util.h"
+
+namespace base {
+struct PlatformFileInfo;
+class Time;
+}
+
+namespace fileapi {
+
+// Helper interface to support media device isolated file system operations.
+class MediaDeviceInterface {
+ public:
+  virtual base::PlatformFileError GetFileInfo(
+      const FilePath& file_path,
+      base::PlatformFileInfo* file_info) = 0;
+  virtual FileSystemFileUtil::AbstractFileEnumerator* CreateFileEnumerator(
+      const FilePath& root,
+      bool recursive) = 0;
+  virtual base::PlatformFileError Touch(
+      const FilePath& file_path,
+      const base::Time& last_access_time,
+      const base::Time& last_modified_time) = 0;
+  virtual bool PathExists(const FilePath& file_path) = 0;
+  virtual bool DirectoryExists(const FilePath& file_path) = 0;
+  virtual bool IsDirectoryEmpty(const FilePath& file_path) = 0;
+  virtual PlatformFileError CreateSnapshotFile(
+      const FilePath& device_file_path,
+      const FilePath& local_path,
+      base::PlatformFileInfo* file_info) = 0;
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_MEDIA_MEDIA_DEVICE_INTERFACE_H_