Stop returning the true root path of each filesystem from openFileSystem.

Instead, return the FileSystem URI of the root.  This will make it easier
to swap in different filesystem implementations.

BUG=71635
TEST=Just a couple in FileSystemUtilTests, but a bunch of existing ones [this doesn't add much new functionality].
Review URL: http://codereview.chromium.org/6603034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79228 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 48 insertions, 0 deletions

diff --git a/webkit/fileapi/file_system_mount_point_provider.h b/webkit/fileapi/file_system_mount_point_provider.h
new file mode 100644
index 0000000..3136636
--- /dev/null
+++ b/webkit/fileapi/file_system_mount_point_provider.h
@@ -0,0 +1,48 @@
+// Copyright (c) 2011 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_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
+#define WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
+
+#include "base/file_path.h"
+#include "googleurl/src/gurl.h"
+#include "webkit/fileapi/file_system_path_manager.h"
+#include "webkit/fileapi/file_system_types.h"
+
+namespace fileapi {
+
+// An interface to provide local filesystem paths.
+
+class FileSystemMountPointProvider {
+ public:
+  virtual ~FileSystemMountPointProvider() {}
+
+  // Checks if mount point access is allowed from |origin_url|.
+  virtual bool IsAccessAllowed(const GURL& origin_url) = 0;
+
+  // Retrieves the root path for the given |origin_url| and |type|, and
+  // calls the given |callback| with the root path and name.
+  // If |create| is true this also creates the directory if it doesn't exist.
+  virtual void GetFileSystemRootPath(
+      const GURL& origin_url,
+      FileSystemType type,
+      bool create,
+      FileSystemPathManager::GetRootPathCallback* callback) = 0;
+
+  // Like GetFileSystemRootPath, but synchronous, and can be called only while
+  // running on the file thread.
+  virtual FilePath GetFileSystemRootPathOnFileThread(
+      const GURL& origin_url,
+      FileSystemType type,
+      bool create) = 0;
+
+  // Checks if a given |name| contains any restricted names/chars in it.
+  // Callable on any thread.
+  virtual bool IsRestrictedFileName(const FilePath& filename) const = 0;
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
+