run iwyu on base!

base/file_util.cc

 // Copyright (c) 2010 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 "base/basictypes.h"
 #include "base/file_util.h"
+#include "base/platform_file.h"
 
 #if defined(OS_WIN)
 #include <io.h>
 #endif
 #include <stdio.h>
-
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include <fstream>
+#include <ios>
+#include <string>
 
 #include "base/file_path.h"
 #include "base/logging.h"
-#include "base/string_piece.h"
 #include "base/string_util.h"
-#include "base/utf_string_conversions.h"
 
 namespace {
 
 const FilePath::CharType kExtensionSeparator = FILE_PATH_LITERAL('.');
 
 }  // namespace
 
 namespace file_util {
 
 bool EndsWithSeparator(const FilePath& path) {
@@ skipping 372 matching lines @@
 // FileEnumerator
 //
 // Note: the main logic is in file_util_<platform>.cc
 
 bool FileEnumerator::ShouldSkip(const FilePath& path) {
   FilePath::StringType basename = path.BaseName().value();
   return IsDot(path) || (IsDotDot(path) && !(INCLUDE_DOT_DOT & file_type_));
 }
 
 }  // namespace