Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/ui/metro_pin_tab_helper_win.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 "chrome/browser/ui/metro_pin_tab_helper_win.h"
 
 #include <set>
 
 #include "base/base_paths.h"
 #include "base/bind.h"
@@ skipping 90 matching lines @@
   int left = (kLogoWidth - bitmap.width()) / 2;
   int top = (kLogoHeight - kCaptionHeight - bitmap.height()) / 2;
   canvas.DrawImageInt(gfx::ImageSkia::CreateFrom1xBitmap(bitmap), left, top);
 
   SkBitmap logo_bitmap = canvas.ExtractImageRep().sk_bitmap();
   std::vector<unsigned char> logo_png;
   if (!gfx::PNGCodec::EncodeBGRASkBitmap(logo_bitmap, true, &logo_png))
     return false;
 
   *logo_path = logo_dir.Append(tile_id).ReplaceExtension(L".png");
-  return file_util::WriteFile(*logo_path,
-                              reinterpret_cast<char*>(&logo_png[0]),
-                              logo_png.size()) > 0;
+  return base::WriteFile(*logo_path,
+                         reinterpret_cast<char*>(&logo_png[0]),
+                         logo_png.size()) > 0;
 }
 
 // Get the path to the backup logo. If the backup logo already exists in
 // |logo_dir|, it will be used, otherwise it will be copied out of the install
 // folder. (The version in the install folder is not used as it may disappear
 // after an upgrade, causing tiles to lose their images if Windows rebuilds
 // its tile image cache.)
 // The path to the logo is returned in |logo_path|, with the return value
 // indicating success.
 bool GetPathToBackupLogo(const base::FilePath& logo_dir,
@@ skipping 326 matching lines @@
 
   GURL url = web_contents()->GetURL();
   base::string16 tile_id = GenerateTileId(base::UTF8ToUTF16(url.spec()));
   metro_un_pin_from_start_screen(tile_id,
                                  base::Bind(&PinPageReportUmaCallback));
 }
 
 void MetroPinTabHelper::FaviconDownloaderFinished() {
   favicon_chooser_.reset();
 }