Deprecate file_util::AppendToPath() on non-Windows.

printing/printed_document.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 "printing/printed_document.h"
 
 #include <set>
 
 #include "app/gfx/font.h"
 #include "app/gfx/text_elider.h"
@@ skipping 252 matching lines @@
   filename += L"_";
   filename += StringPrintf(L"%02d", page.page_number());
   filename += L"_.emf";
 #if defined(OS_WIN)
   file_util::ReplaceIllegalCharactersInPath(&filename, '_');
 #else
   std::string narrow_filename = WideToUTF8(filename);
   file_util::ReplaceIllegalCharactersInPath(&narrow_filename, '_');
   filename = UTF8ToWide(narrow_filename);
 #endif
-  std::wstring path(g_debug_dump_info->debug_dump_path);
-  file_util::AppendToPath(&path, filename);
+  FilePath path = FilePath::FromWStringHack(
+      g_debug_dump_info->debug_dump_path);
 #if defined(OS_WIN)
-  page.native_metafile()->SaveTo(path);
+  page.native_metafile()->SaveTo(path.Append(filename).ToWStringHack());
 #else  // OS_WIN
   NOTIMPLEMENTED();
 #endif  // OS_WIN
 }
 
 void PrintedDocument::set_debug_dump_path(const std::wstring& debug_dump_path) {
   g_debug_dump_info->enabled = !debug_dump_path.empty();
   g_debug_dump_info->debug_dump_path = debug_dump_path;
 }
 
@@ skipping 24 matching lines @@
   date_ = win_util::FormatSystemDate(systemtime, std::wstring());
   time_ = win_util::FormatSystemTime(systemtime, std::wstring());
 #else  // OS_WIN
   Time now = Time::Now();
   date_ = base::TimeFormatShortDateNumeric(now);
   time_ = base::TimeFormatTimeOfDay(now);
 #endif  // OS_WIN
 }
 
 }  // namespace printing