Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/ui/network_profile_bubble.cc

Index: chrome/browser/ui/network_profile_bubble.cc
diff --git a/chrome/browser/ui/network_profile_bubble.cc b/chrome/browser/ui/network_profile_bubble.cc
index 7e3d385afa367788c02b6cb34bec6a8bc01fe28c..b611d59b370d268d298466641f898eeb09f5a93d 100644
--- a/chrome/browser/ui/network_profile_bubble.cc
+++ b/chrome/browser/ui/network_profile_bubble.cc
@@ -127,7 +127,7 @@ void NetworkProfileBubble::CheckNetworkProfile(
       // Try to create some non-empty temp file in the profile dir and use
       // it to check if there is a reparse-point free path to it.
       if (base::CreateTemporaryFileInDir(profile_folder, &temp_file) &&
-          (file_util::WriteFile(temp_file, ".", 1) == 1)) {
+          (base::WriteFile(temp_file, ".", 1) == 1)) {
         base::FilePath normalized_temp_file;
         if (!base::NormalizeFilePath(temp_file, &normalized_temp_file))
           profile_on_network = true;