Move some XDG code from chrome to base.

media/filters/file_data_source_unittest.cc

 // Copyright (c) 2009 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 <string>
 
 #include "base/base_paths.h"
 #include "base/file_path.h"
+#include "base/path_service.h"
 #include "base/string_util.h"
 #include "media/base/mock_filter_host.h"
 #include "media/base/mock_filters.h"
 #include "media/filters/file_data_source.h"
 
 using ::testing::NiceMock;
 using ::testing::StrictMock;
 
 namespace {
 
@@ skipping 85 matching lines @@
   StrictMock<MockFilterCallback> callback;
   EXPECT_CALL(callback, OnFilterCallback());
   EXPECT_CALL(callback, OnCallbackDestroyed());
   const base::TimeDelta kZero;
 
   scoped_refptr<FileDataSource> filter = new FileDataSource();
   filter->Seek(kZero, callback.NewCallback());
 }
 
 }  // namespace media