Implement IsNonNativeLocalPathDirectory for supporting non-local non-Drive directory access in apps.

chrome/browser/chromeos/file_manager/fileapi_util.h

 // Copyright 2013 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.
 //
 // This file provides File API related utilities.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_FILEAPI_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_FILEAPI_UTIL_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "url/gurl.h"
+#include "webkit/browser/fileapi/file_system_operation_runner.h"
 
 class Profile;
 
 namespace content {
 class RenderViewHost;
 }
 
 namespace fileapi {
 class FileSystemContext;
 }
@@ skipping 91 matching lines @@
 // Converts a list of file definitions into a list of entry definitions and
 // returns it via |callback|. The method is safe, |file_definition_list| is
 // copied internally. The output list has the same order of items and size as
 // the input vector. |profile| cannot be null. Must be called on UI thread.
 void ConvertFileDefinitionListToEntryDefinitionList(
     Profile* profile,
     const std::string& extension_id,
     const FileDefinitionList& file_definition_list,
     const EntryDefinitionListCallback& callback);
 
+// Checks if a directory exists at |url|.
+void CheckIfDirectoryExists(
+    scoped_refptr<fileapi::FileSystemContext> file_system_context,
+    const GURL& url,
+    const fileapi::FileSystemOperationRunner::StatusCallback& callback);
+
 }  // namespace util
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_FILEAPI_UTIL_H_