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+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_TEST_PERF_TIME_LOGGER_H_
+#define BASE_TEST_PERF_TIME_LOGGER_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/test/perftimer.h"
+
+namespace base {
+
+// Automates calling LogPerfResult for the common case where you want
+// to measure the time that something took. Call Done() when the test
+// is complete if you do extra work after the test or there are stack
+// objects with potentially expensive constructors. Otherwise, this
+// class with automatically log on destruction.
+class PerfTimeLogger {
+ public:
+ explicit PerfTimeLogger(const char* test_name);
+ ~PerfTimeLogger();
+
+ void Done();
+
+ private:
+ bool logged_;
+ std::string test_name_;
+ PerfTimer timer_;
+
+ DISALLOW_COPY_AND_ASSIGN(PerfTimeLogger);
+};
+
+} // namespace base
+
+#endif // BASE_TEST_PERF_TIME_LOGGER_H_