Move some more file utils to the base namespace.

base/nix/mime_util_xdg.cc

 // Copyright (c) 2012 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/nix/mime_util_xdg.h"
 
 #include <cstdlib>
 #include <list>
 #include <map>
 #include <vector>
@@ skipping 396 matching lines @@
 // For a xdg directory |dir|, add the appropriate icon sub-directories.
 void AddXDGDataDir(const FilePath& dir) {
   if (!DirectoryExists(dir))
     return;
   TryAddIconDir(dir.Append("icons"));
   TryAddIconDir(dir.Append("pixmaps"));
 }
 
 // Add all the xdg icon directories.
 void InitIconDir() {
-  FilePath home = file_util::GetHomeDir();
+  FilePath home = GetHomeDir();
   if (!home.empty()) {
       FilePath legacy_data_dir(home);
       legacy_data_dir = legacy_data_dir.AppendASCII(".icons");
       if (DirectoryExists(legacy_data_dir))
         TryAddIconDir(legacy_data_dir);
   }
   const char* env = getenv("XDG_DATA_HOME");
   if (env) {
     AddXDGDataDir(FilePath(env));
   } else if (!home.empty()) {
@@ skipping 218 matching lines @@
       icon_file = LookupIconInDefaultTheme(icon_names[i], size);
       if (!icon_file.empty())
         return icon_file;
     }
   }
   return FilePath();
 }
 
 }  // namespace nix
 }  // namespace base