Revert 192940 "Delete CopyRecursiveDirNoCache from test_file_util."

trunk/src/base/test/test_file_util_win.cc

Index: trunk/src/base/test/test_file_util_win.cc
===================================================================
--- trunk/src/base/test/test_file_util_win.cc	(revision 193252)
+++ trunk/src/base/test/test_file_util_win.cc	(working copy)
@@ -216,6 +216,59 @@
   return true;
 }
 
+// Like CopyFileNoCache but recursively copies all files and subdirectories
+// in the given input directory to the output directory.
+bool CopyRecursiveDirNoCache(const base::FilePath& source_dir,
+                             const base::FilePath& 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;
+
+  base::FilePath src(source_dir.AppendASCII("*"));
+
+  WIN32_FIND_DATA fd;
+  HANDLE fh = FindFirstFile(src.value().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.
+
+    base::FilePath cur_source_path = source_dir.Append(cur_file);
+    base::FilePath cur_dest_path = dest_dir.Append(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.value().c_str(),
+                      cur_dest_path.value().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);
+    }
+  } while (FindNextFile(fh, &fd));
+
+  FindClose(fh);
+  return true;
+}
+
 // Checks if the volume supports Alternate Data Streams. This is required for
 // the Zone Identifier implementation.
 bool VolumeSupportsADS(const base::FilePath& path) {