Cleanup file permission check code in FileAPIMessageFilter

webkit/fileapi/file_system_mount_point_provider.h

 // 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_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/file_path.h"
 #include "base/platform_file.h"
+#include "webkit/fileapi/file_permission_policy.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace webkit_blob {
 class FileStreamReader;
 }
 
 namespace fileapi {
 
 class FileSystemURL;
@@ skipping 37 matching lines @@
   // Checks if access to |virtual_path| is allowed from |origin_url|.
   virtual bool IsAccessAllowed(const FileSystemURL& url) = 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;
 
   // Returns the specialized FileSystemFileUtil for this mount point.
   virtual FileSystemFileUtil* GetFileUtil(FileSystemType type) = 0;
 
-  // Returns file path we should use to check access permissions for
-  // |virtual_path|.
-  virtual FilePath GetPathForPermissionsCheck(const FilePath& virtual_path)
-      const = 0;
+  // Returns file permission policy we should apply for the given |url|.
+  virtual FilePermissionPolicy GetPermissionPolicy(
+      const FileSystemURL& url,
+      int permissions) const = 0;
 
   // Returns a new instance of the specialized FileSystemOperation for this
   // mount point based on the given triplet of |origin_url|, |file_system_type|
   // and |virtual_path|. On failure to create a file system operation, set
   // |error_code| correspondingly.
   // This method is usually dispatched by
   // FileSystemContext::CreateFileSystemOperation.
   virtual FileSystemOperation* CreateFileSystemOperation(
       const FileSystemURL& url,
       FileSystemContext* context,
@@ skipping 69 matching lines @@
   virtual void RemoveMountPoint(const FilePath& mount_point) = 0;
   // Gets virtual path by known filesystem path. Returns false when filesystem
   // path is not exposed by this provider.
   virtual bool GetVirtualPath(const FilePath& file_system_path,
                               FilePath* virtual_path) = 0;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_MOUNT_POINT_PROVIDER_H_