Move directory creation functions to base namespace.

chrome/browser/web_applications/web_app_win.cc

Index: chrome/browser/web_applications/web_app_win.cc
diff --git a/chrome/browser/web_applications/web_app_win.cc b/chrome/browser/web_applications/web_app_win.cc
index 9c43e89b4b094051e51dfc7a0754f19ba4ebe59b..1187cc387b913540b1d2bd070662247742803f0b 100644
--- a/chrome/browser/web_applications/web_app_win.cc
+++ b/chrome/browser/web_applications/web_app_win.cc
@@ -167,7 +167,7 @@ bool CreateShortcutsInPaths(
     std::vector<base::FilePath>* out_filenames) {
   // Ensure web_app_path exists.
   if (!base::PathExists(web_app_path) &&
-      !file_util::CreateDirectory(web_app_path)) {
+      !base::CreateDirectory(web_app_path)) {
     return false;
   }
 
@@ -244,7 +244,7 @@ bool CreateShortcutsInPaths(
     shortcut_properties.set_app_id(app_id);
     shortcut_properties.set_dual_mode(false);
     if (!base::PathExists(shortcut_file.DirName()) &&
-        !file_util::CreateDirectory(shortcut_file.DirName())) {
+        !base::CreateDirectory(shortcut_file.DirName())) {
       NOTREACHED();
       return false;
     }