mandoline filesystem: add a sqlite3 vfs to proxy filesystem usage.

components/filesystem/directory_impl_unittest.cc

 // 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.
 
 #include <map>
 #include <string>
 
 #include "components/filesystem/files_test_base.h"
+#include "mojo/util/capture_util.h"
+
+using mojo::Capture;
 
 namespace filesystem {
 namespace {
 
 using DirectoryImplTest = FilesTestBase;
 
 TEST_F(DirectoryImplTest, Read) {
   DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   FileError error;
@@ skipping 125 matching lines @@
     ASSERT_TRUE(directory.WaitForIncomingResponse());
     EXPECT_EQ(FILE_ERROR_NOT_A_FILE, error);
   }
 }
 
 
 // TODO(vtl): Test delete flags.
 
 }  // namespace
 }  // namespace filesystem