Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/extensions/api/media_galleries_private/media_galleries_watch_apitest.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.
 //
 // MediaGalleriesPrivate gallery watch API browser tests.
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 88 matching lines @@
         (gallery_directory_key != chrome::DIR_USER_PICTURES) &&
         (gallery_directory_key != chrome::DIR_USER_VIDEOS))
       return false;
 
     base::FilePath gallery_dir;
     if (!PathService::Get(gallery_directory_key, &gallery_dir))
       return false;
     base::FilePath gallery_file =
         gallery_dir.Append(FILE_PATH_LITERAL("test1.txt"));
     std::string content("new content");
-    int write_size = file_util::WriteFile(gallery_file, content.c_str(),
-                                          content.length());
+    int write_size = base::WriteFile(gallery_file, content.c_str(),
+                                     content.length());
     return (write_size == static_cast<int>(content.length()));
   }
 
   // Loads the test extension and returns the RenderViewHost of the extension.
   // Returns NULL if the extension load operation failed.
   content::RenderViewHost* GetBackgroundHostForTestExtension() {
     const extensions::Extension* extension =
         LoadExtension(test_data_dir_.AppendASCII(kTestExtensionPath));
     if (!extension)
       return NULL;
@@ skipping 305 matching lines @@
   // Gallery watchers does not exists.
   // chrome.mediaGalleriesPrivate.getAllGalleryWatch should return an empty
   // list.
   ExtensionTestMessageListener get_all_gallery_watch_finished(
       kGetAllGalleryWatchResultA, false  /* no reply */);
   ExecuteCmdAndCheckReply(host, kGetAllWatchedGalleryIdsCmd,
                           kGetAllGalleryWatchOK);
   EXPECT_TRUE(get_all_gallery_watch_finished.WaitUntilSatisfied());
 }
 #endif