Move WriteFile and WriteFileDescriptor from file_util to base namespace.

remoting/host/config_file_watcher_unittest.cc

 // Copyright (c) 2013 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 "remoting/host/config_file_watcher.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 78 matching lines @@
 
 void ConfigFileWatcherTest::TearDown() {
   // Delete the test file.
   if (!config_file_.empty())
     base::DeleteFile(config_file_, false);
 }
 
 // Verifies that the initial notification is delivered.
 TEST_F(ConfigFileWatcherTest, Basic) {
   std::string data("test");
-  EXPECT_NE(file_util::WriteFile(config_file_, data.c_str(),
+  EXPECT_NE(base::WriteFile(config_file_, data.c_str(),
                                  static_cast<int>(data.size())), -1);
 
   EXPECT_CALL(delegate_, OnConfigUpdated(_))
       .Times(1)
       .WillOnce(InvokeWithoutArgs(this, &ConfigFileWatcherTest::StopWatcher));
   EXPECT_CALL(delegate_, OnConfigWatcherError())
       .Times(0);
 
   watcher_->Watch(&delegate_);
   run_loop_.Run();
 }
 
 MATCHER_P(EqualsString, s, "") {
   return arg == s;
 }
 
 // Verifies that an update notification is sent when the file is changed.
 TEST_F(ConfigFileWatcherTest, Update) {
   EXPECT_CALL(delegate_, OnConfigUpdated(EqualsString("test")))
       .Times(1)
       .WillOnce(InvokeWithoutArgs(this, &ConfigFileWatcherTest::StopWatcher));
   EXPECT_CALL(delegate_, OnConfigWatcherError())
       .Times(0);
 
   watcher_->Watch(&delegate_);
 
   // Modify the watched file.
   std::string data("test");
-  EXPECT_NE(file_util::WriteFile(config_file_, data.c_str(),
+  EXPECT_NE(base::WriteFile(config_file_, data.c_str(),
                                  static_cast<int>(data.size())), -1);
 
   run_loop_.Run();
 }
 
 }  // namespace remoting