Prototype of Files service.

services/files/files.mojom

+// Copyright 2015 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.
+
+module mojo.files;
+
+import "services/files/directory.mojom";
+import "services/files/types.mojom";
+
+enum FileSystem {
+  // A per-instance (i.e., one for each call to |OpenFileSystem()|) temporary
+  // file system.
+  TEMPORARY,
+
+  // A persistent, shared file system (rooted at ~/MojoDebug, which must already
+  // exist) only available in Debug builds.

[qsr, 2015/03/02 12:46:40]

What is ~/MojoDebug on Android?

[viettrungluu, 2015/03/02 18:10:59]

It probably doesn't work, but feel free to suggest an alternative.

[qsr, 2015/03/03 11:56:44]

I guess I can make sure that HOME has some kind of usable value on android. Then
this will work, as this is only for debug. But when we will want per app
storage, we will need something more...

[viettrungluu, 2015/03/03 18:50:35]

Right. We'll need to decide on per-app versus per-origin, and also figure out
persistence rules, quota, etc. (Probably we shouldn't encourage too much data to
be saved locally.)

+  DEBUG,
+};
+
+interface Files {
+  OpenFileSystem(FileSystem file_system, Directory& directory) => (Error error);
+};