base: Split logging functions and PerfTimeLogger out of perftimer.h

base/test/perf_log.cc

Index: base/test/perf_log.cc
diff --git a/base/test/perftimer.cc b/base/test/perf_log.cc
similarity index 82%
copy from base/test/perftimer.cc
copy to base/test/perf_log.cc
index 6815f0b082acf0917085221cc2f9e8b7d0b7e59d..aaeb26c4cd6446369996c5280e198af7c07bc36a 100644
--- a/base/test/perftimer.cc
+++ b/base/test/perf_log.cc
@@ -2,19 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/test/perftimer.h"
+#include "base/test/perf_log.h"
 
-#include <stdio.h>
-#include <string>
-
-#include "base/basictypes.h"
 #include "base/file_util.h"
-#include "base/files/file_path.h"
 #include "base/logging.h"
 
+namespace base {
+
 static FILE* perf_log_file = NULL;
 
-bool InitPerfLog(const base::FilePath& log_file) {
+bool InitPerfLog(const FilePath& log_file) {
   if (perf_log_file) {
     // trying to initialize twice
     NOTREACHED();
@@ -43,3 +40,5 @@ void LogPerfResult(const char* test_name, double value, const char* units) {
   fprintf(perf_log_file, "%s\t%g\t%s\n", test_name, value, units);
   printf("%s\t%g\t%s\n", test_name, value, units);
 }
+
+}  // namespace base