Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/browsing_data/browsing_data_local_storage_helper_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 <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
@@ skipping 42 matching lines @@
   void CreateLocalStorageFilesForTest() {
     // Note: This helper depends on details of how the dom_storage library
     // stores data in the host file system.
     base::FilePath storage_path = GetLocalStoragePathForTestingProfile();
     base::CreateDirectory(storage_path);
     const base::FilePath::CharType* kFilesToCreate[] = {
         kTestFile0, kTestFile1, kTestFileInvalid, kTestFileExtension
     };
     for (size_t i = 0; i < arraysize(kFilesToCreate); ++i) {
       base::FilePath file_path = storage_path.Append(kFilesToCreate[i]);
-      file_util::WriteFile(file_path, NULL, 0);
+      base::WriteFile(file_path, NULL, 0);
     }
   }
 
   base::FilePath GetLocalStoragePathForTestingProfile() {
     return browser()->profile()->GetPath().AppendASCII("Local Storage");
   }
 };
 
 // This class is notified by BrowsingDataLocalStorageHelper on the UI thread
 // once it finishes fetching the local storage data.
@@ skipping 108 matching lines @@
       base::Bind(&TestCompletionCallback::callback,
                  base::Unretained(&callback)));
 
   std::list<BrowsingDataLocalStorageHelper::LocalStorageInfo> result =
       callback.result();
 
   ASSERT_EQ(1u, result.size());
   EXPECT_EQ(origin, result.begin()->origin_url);
 }
 }  // namespace