Un-duplicate EvictFileFromSystemCache....

chrome/test/test_file_util.cc

Index: chrome/test/test_file_util.cc
===================================================================
--- chrome/test/test_file_util.cc	(revision 5973)
+++ chrome/test/test_file_util.cc	(working copy)
@@ -1,100 +0,0 @@
-// Copyright (c) 2006-2008 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.
-
-#include <vector>
-#include <windows.h>
-
-#include "chrome/test/test_file_util.h"
-
-#include "base/file_util.h"
-#include "chrome/common/win_util.h"
-
-namespace file_util {
-
-bool EvictFileFromSystemCache(const wchar_t* file) {
-  // Request exclusive access to the file and overwrite it with no buffering.
-  win_util::ScopedHandle hfile(
-      CreateFile(file, GENERIC_READ | GENERIC_WRITE, 0, NULL,
-                 OPEN_EXISTING, FILE_FLAG_NO_BUFFERING,
-                 NULL));
-  if (!hfile)
-    return false;
-
-  // Execute in chunks. It could be optimized. We want to do few of these since
-  // these opterations will be slow without the cache.
-  char buffer[4096];
-  int total_bytes = 0;
-  DWORD bytes_read;
-  for (;;) {
-    bytes_read = 0;
-    ReadFile(hfile, buffer, sizeof(buffer), &bytes_read, NULL);
-    if (bytes_read == 0)
-      break;
-
-    SetFilePointer(hfile, total_bytes, 0, FILE_BEGIN);
-    if (!WriteFile(hfile, buffer, bytes_read, &bytes_read, NULL))
-      return false;
-    total_bytes += bytes_read;
-  }
-  return true;
-}
-
-// Like CopyFileNoCache but recursively copies all files and subdirectories
-// in the given input directory to the output directory.
-bool CopyRecursiveDirNoCache(const std::wstring& source_dir,
-                             const std::wstring& dest_dir) {
-  // Try to create the directory if it doesn't already exist.
-  if (!CreateDirectory(dest_dir)) {
-    if (GetLastError() != ERROR_ALREADY_EXISTS)
-      return false;
-  }
-
-  std::vector<std::wstring> files_copied;
-
-  std::wstring src(source_dir);
-  file_util::AppendToPath(&src, L"*");
-
-  WIN32_FIND_DATA fd;
-  HANDLE fh = FindFirstFile(src.c_str(), &fd);
-  if (fh == INVALID_HANDLE_VALUE)
-    return false;
-
-  do {
-    std::wstring cur_file(fd.cFileName);
-    if (cur_file == L"." || cur_file == L"..")
-      continue;  // Skip these special entries.
-
-    std::wstring cur_source_path(source_dir);
-    file_util::AppendToPath(&cur_source_path, cur_file);
-
-    std::wstring cur_dest_path(dest_dir);
-    file_util::AppendToPath(&cur_dest_path, cur_file);
-
-    if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
-      // Recursively copy a subdirectory. We stripped "." and ".." already.
-      if (!CopyRecursiveDirNoCache(cur_source_path, cur_dest_path)) {
-        FindClose(fh);
-        return false;
-      }
-    } else {
-      // Copy the file.
-      if (!::CopyFile(cur_source_path.c_str(), cur_dest_path.c_str(), false)) {
-        FindClose(fh);
-        return false;
-      }
-
-      // We don't check for errors from this function, often, we are copying
-      // files that are in the repository, and they will have read-only set.
-      // This will prevent us from evicting from the cache, but these don't
-      // matter anyway.
-      EvictFileFromSystemCache(cur_dest_path.c_str());
-    }
-  } while (FindNextFile(fh, &fd));
-
-  FindClose(fh);
-  return true;
-}
-
-}  // namespace file_util
-