Un-duplicate EvictFileFromSystemCache....

base/test_file_util.h

Index: base/test_file_util.h
===================================================================
--- base/test_file_util.h	(revision 0)
+++ base/test_file_util.h	(revision 0)
@@ -0,0 +1,29 @@
+// Copyright (c) 2008 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 BASE_TEST_FILE_UTIL_H_
+#define BASE_TEST_FILE_UTIL_H_
+
+// File utility functions used only by tests.
+
+#include <string>
+
+namespace file_util {
+
+// Clear a specific file from the system cache. After this call, trying
+// to access this file will result in a cold load from the hard drive.
+bool EvictFileFromSystemCache(const wchar_t* file);
+
+// Like CopyFileNoCache but recursively copies all files and subdirectories
+// in the given input directory to the output directory. Any files in the
+// destination that already exist will be overwritten.
+//
+// Returns true on success. False means there was some error copying, so the
+// state of the destination is unknown.
+bool CopyRecursiveDirNoCache(const std::wstring& source_dir,
+                             const std::wstring& dest_dir);
+
+}  // namespace file_util
+
+#endif  // BASE_TEST_FILE_UTIL_H_