Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/extensions/convert_web_app.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/extensions/convert_web_app.h"
 
 #include <cmath>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 131 matching lines @@
     std::vector<unsigned char> image_data;
     if (!gfx::PNGCodec::EncodeBGRASkBitmap(web_app.icons[i].data,
                                            false,
                                            &image_data)) {
       LOG(ERROR) << "Could not create icon file.";
       return NULL;
     }
 
     const char* image_data_ptr = reinterpret_cast<const char*>(&image_data[0]);
     int size = base::checked_cast<int>(image_data.size());
-    if (file_util::WriteFile(icon_file, image_data_ptr, size) != size) {
+    if (base::WriteFile(icon_file, image_data_ptr, size) != size) {
       LOG(ERROR) << "Could not write icon file.";
       return NULL;
     }
   }
 
   // Finally, create the extension object to represent the unpacked directory.
   std::string error;
   scoped_refptr<Extension> extension = Extension::Create(
       temp_dir.path(),
       Manifest::INTERNAL,
       *root,
       Extension::FROM_BOOKMARK,
       &error);
   if (!extension.get()) {
     LOG(ERROR) << error;
     return NULL;
   }
 
   temp_dir.Take();  // The caller takes ownership of the directory.
   return extension;
 }
 
 }  // namespace extensions