Move more file_util functions to base namespace.

chrome/tools/convert_dict/convert_dict.cc

Index: chrome/tools/convert_dict/convert_dict.cc
diff --git a/chrome/tools/convert_dict/convert_dict.cc b/chrome/tools/convert_dict/convert_dict.cc
index 02cafe3d1660cc56e9d3bcd25de682653057ec49..3c2c6da39957e6665930b045919082d501e48b24 100644
--- a/chrome/tools/convert_dict/convert_dict.cc
+++ b/chrome/tools/convert_dict/convert_dict.cc
@@ -136,14 +136,14 @@ int main(int argc, char* argv[]) {
   base::FilePath out_path =
       file_base.ReplaceExtension(FILE_PATH_LITERAL(".bdic"));
   printf("Writing %" PRFilePath " ...\n", out_path.value().c_str());
-  FILE* out_file = file_util::OpenFile(out_path, "wb");
+  FILE* out_file = base::OpenFile(out_path, "wb");
   if (!out_file) {
     printf("ERROR writing file\n");
     return 1;
   }
   size_t written = fwrite(&serialized[0], 1, serialized.size(), out_file);
   CHECK(written == serialized.size());
-  file_util::CloseFile(out_file);
+  base::CloseFile(out_file);
 
   return 0;
 }