Move directory creation functions to base namespace.

net/disk_cache/simple/simple_index_file_unittest.cc

 // Copyright (c) 2011 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/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/hash.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 68 matching lines @@
                         net::DISK_CACHE,
                         index_file_directory) {}
   virtual ~WrappedSimpleIndexFile() {
   }
 
   const base::FilePath& GetIndexFilePath() const {
     return index_file_;
   }
 
   bool CreateIndexFileDirectory() const {
-    return file_util::CreateDirectory(index_file_.DirName());
+    return base::CreateDirectory(index_file_.DirName());
   }
 };
 
 class SimpleIndexFileTest : public testing::Test {
  public:
   bool CompareTwoEntryMetadata(const EntryMetadata& a, const EntryMetadata& b) {
     return
         a.last_used_time_seconds_since_epoch_ ==
             b.last_used_time_seconds_since_epoch_ &&
         a.entry_size_ == b.entry_size_;
@@ skipping 236 matching lines @@
   WrappedSimpleIndexFile::Deserialize(contents.data(),
                                       contents.size(),
                                       &when_index_last_saw_cache,
                                       &deserialize_result);
   EXPECT_TRUE(deserialize_result.did_load);
 }
 
 #endif  // defined(OS_POSIX)
 
 }  // namespace disk_cache