Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/test/chromedriver/chrome_launcher.cc

Index: chrome/test/chromedriver/chrome_launcher.cc
diff --git a/chrome/test/chromedriver/chrome_launcher.cc b/chrome/test/chromedriver/chrome_launcher.cc
index e006ff56bfa70d919ff924f8899e35f139de2bcc..44a4ad822e63668607be6aa9ebbafe204a1ab11f 100644
--- a/chrome/test/chromedriver/chrome_launcher.cc
+++ b/chrome/test/chromedriver/chrome_launcher.cc
@@ -65,7 +65,7 @@ Status UnpackAutomationExtension(const base::FilePath& temp_dir,
 
   base::FilePath extension_zip = temp_dir.AppendASCII("internal.zip");
   int size = static_cast<int>(decoded_extension.length());
-  if (file_util::WriteFile(extension_zip, decoded_extension.c_str(), size)
+  if (base::WriteFile(extension_zip, decoded_extension.c_str(), size)
       != size) {
     return Status(kUnknownError, "failed to write automation extension zip");
   }
@@ -513,7 +513,7 @@ Status ProcessExtension(const std::string& extension,
     return Status(kUnknownError, "cannot create temp dir");
   base::FilePath extension_crx = temp_crx_dir.path().AppendASCII("temp.crx");
   int size = static_cast<int>(decoded_extension.length());
-  if (file_util::WriteFile(extension_crx, decoded_extension.c_str(), size) !=
+  if (base::WriteFile(extension_crx, decoded_extension.c_str(), size) !=
       size) {
     return Status(kUnknownError, "cannot write file");
   }
@@ -553,7 +553,7 @@ Status ProcessExtension(const std::string& extension,
   } else {
     manifest->SetString("key", public_key_base64);
     base::JSONWriter::Write(manifest, &manifest_data);
-    if (file_util::WriteFile(
+    if (base::WriteFile(
             manifest_path, manifest_data.c_str(), manifest_data.size()) !=
         static_cast<int>(manifest_data.size())) {
       return Status(kUnknownError, "cannot add 'key' to manifest");
@@ -651,7 +651,7 @@ Status WritePrefsFile(
   base::JSONWriter::Write(prefs, &prefs_str);
   VLOG(0) << "Populating " << path.BaseName().value()
           << " file: " << PrettyPrintValue(*prefs);
-  if (static_cast<int>(prefs_str.length()) != file_util::WriteFile(
+  if (static_cast<int>(prefs_str.length()) != base::WriteFile(
           path, prefs_str.c_str(), prefs_str.length())) {
     return Status(kUnknownError, "failed to write prefs file");
   }
@@ -682,7 +682,7 @@ Status PrepareUserDataDir(
 
   // Write empty "First Run" file, otherwise Chrome will wipe the default
   // profile that was written.
-  if (file_util::WriteFile(
+  if (base::WriteFile(
           user_data_dir.Append(chrome::kFirstRunSentinel), "", 0) != 0) {
     return Status(kUnknownError, "failed to write first run file");
   }