Revert 239280 "Move more file_util functions to base namespace."

trunk/src/base/test/perf_log.cc

Index: trunk/src/base/test/perf_log.cc
===================================================================
--- trunk/src/base/test/perf_log.cc	(revision 239399)
+++ trunk/src/base/test/perf_log.cc	(working copy)
@@ -18,7 +18,7 @@
     return false;
   }
 
-  perf_log_file = OpenFile(log_file, "w");
+  perf_log_file = file_util::OpenFile(log_file, "w");
   return perf_log_file != NULL;
 }
 
@@ -28,7 +28,7 @@
     NOTREACHED();
     return;
   }
-  base::CloseFile(perf_log_file);
+  file_util::CloseFile(perf_log_file);
 }
 
 void LogPerfResult(const char* test_name, double value, const char* units) {