Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/parsers/metadata_parser_filebase_unittest.cc

Index: chrome/browser/parsers/metadata_parser_filebase_unittest.cc
diff --git a/chrome/browser/parsers/metadata_parser_filebase_unittest.cc b/chrome/browser/parsers/metadata_parser_filebase_unittest.cc
index 312ab5a0e3ae76af8ab26c75880e6e6a53f6c1ac..2924128dc9462d3bbf03b2140eab940b6e9ecff4 100644
--- a/chrome/browser/parsers/metadata_parser_filebase_unittest.cc
+++ b/chrome/browser/parsers/metadata_parser_filebase_unittest.cc
@@ -25,8 +25,8 @@ class FileMetaDataParserTest : public testing::Test {
 
     // Create the test file.
     std::string content = "content";
-    int write_size = file_util::WriteFile(test_file_, content.c_str(),
-                                          content.length());
+    int write_size = base::WriteFile(test_file_, content.c_str(),
+                                     content.length());
     ASSERT_EQ(static_cast<int>(content.length()), write_size);
   }