Move directory creation functions to base namespace.

chrome/browser/printing/printing_layout_browsertest.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/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 155 matching lines @@
             base_path.Append(verification_name + L"_rendering.png"));
         emf_content.SaveToPng(rendering);
       }
       return std::max(diff_png, diff_emf);
     }
   }
 
   // Makes sure the directory exists and is empty.
   void CleanupDumpDirectory() {
     EXPECT_TRUE(file_util::DieFileDie(emf_path_, true));
-    EXPECT_TRUE(file_util::CreateDirectory(emf_path_));
+    EXPECT_TRUE(base::CreateDirectory(emf_path_));
   }
 
   // Returns if Clear Type is currently enabled.
   static bool IsClearTypeEnabled() {
     BOOL ct_enabled = 0;
     if (SystemParametersInfo(SPI_GETCLEARTYPE, 0, &ct_enabled, 0) && ct_enabled)
       return true;
     UINT smoothing = 0;
     if (SystemParametersInfo(SPI_GETFONTSMOOTHINGTYPE, 0, &smoothing, 0) &&
         smoothing == FE_FONTSMOOTHINGCLEARTYPE)
@@ skipping 273 matching lines @@
 
     // Force a navigation elsewhere to verify that it's fine with it.
     url = test_server()->GetURL("files/printing/test1.html");
     ui_test_utils::NavigateToURL(browser(), url);
   }
   chrome::CloseWindow(browser());
   content::RunAllPendingInMessageLoop();
 
   EXPECT_EQ(0., CompareWithResult(L"iframe")) << L"iframe";
 }