Move file_util::Delete to the base namespace

content/common/sandbox_mac_diraccess_unittest.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 #include <dirent.h>
 
 extern "C" {
 #include <sandbox.h>
 }
@@ skipping 117 matching lines @@
     EXPECT_EQ(expected, out);
 
   }
 }
 
 // A class to handle auto-deleting a directory.
 class ScopedDirectoryDelete {
  public:
   inline void operator()(base::FilePath* x) const {
     if (x) {
-      file_util::Delete(*x, true);
+      base::Delete(*x, true);
     }
   }
 };
 
 typedef scoped_ptr_malloc<base::FilePath, ScopedDirectoryDelete>
     ScopedDirectory;
 
 TEST_F(MacDirAccessSandboxTest, SandboxAccess) {
   using file_util::CreateDirectory;
 
@@ skipping 152 matching lines @@
     PLOG(ERROR) << "Sandbox breach: was able to write ("
                 << denied_file2.value()
                 << ")";
     return -1;
   }
 
   return 0;
 }
 
 }  // namespace content