Move WriteFile and WriteFileDescriptor from file_util to base namespace.

base/files/file_path_watcher_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/files/file_path_watcher.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <aclapi.h>
 #elif defined(OS_POSIX)
@@ skipping 154 matching lines @@
   FilePath test_file() {
     return temp_dir_.path().AppendASCII("FilePathWatcherTest");
   }
 
   FilePath test_link() {
     return temp_dir_.path().AppendASCII("FilePathWatcherTest.lnk");
   }
 
   // Write |content| to |file|. Returns true on success.
   bool WriteFile(const FilePath& file, const std::string& content) {
-    int write_size = file_util::WriteFile(file, content.c_str(),
-                                          content.length());
+    int write_size = ::base::WriteFile(file, content.c_str(), content.length());
     return write_size == static_cast<int>(content.length());
   }
 
   bool SetupWatch(const FilePath& target,
                   FilePathWatcher* watcher,
                   TestDelegateBase* delegate,
                   bool recursive_watch) WARN_UNUSED_RESULT;
 
   bool WaitForEvents() WARN_UNUSED_RESULT {
     collector_->Reset();
@@ skipping 647 matching lines @@
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, false));
   ASSERT_TRUE(WaitForEvents());
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, true));
   DeleteDelegateOnFileThread(delegate.release());
 }
 
 #endif  // OS_MACOSX
 }  // namespace
 
 }  // namespace base