Import the testing/perf module from Chromium.

tests/perf_tests/third_party/perf/angle-mods.patch

+diff --git a/tests/perf_tests/third_party/perf/perf_test.cc b/tests/perf_tests/third_party/perf/perf_test.cc
+index 0d5abc0..7364330 100644
+--- a/tests/perf_tests/third_party/perf/perf_test.cc
++++ b/tests/perf_tests/third_party/perf/perf_test.cc
+@@ -2,16 +2,51 @@
+ // Use of this source code is governed by a BSD-style license that can be
+ // found in the LICENSE file.
+ 
+-#include "testing/perf/perf_test.h"
++#include "perf_test.h"
+ 
+ #include <stdio.h>
+-
+-#include "base/logging.h"
+-#include "base/strings/string_number_conversions.h"
+-#include "base/strings/stringprintf.h"
++#include <stdarg.h>
++#include <vector>
+ 
+ namespace {
+ 
++namespace base {
++
++std::string FormatString(const char *fmt, va_list vararg) {
++  static std::vector<char> buffer(512);
++
++  // Attempt to just print to the current buffer
++  int len = vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
++  if (len < 0 || static_cast<size_t>(len) >= buffer.size()) {
++    // Buffer was not large enough, calculate the required size and resize the buffer
++    len = vsnprintf(NULL, 0, fmt, vararg);
++    buffer.resize(len + 1);
++
++    // Print again
++    vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
++  }
++
++  return std::string(buffer.data(), len);
++}
++
++std::string StringPrintf(const char *fmt, ...) {
++  va_list vararg;
++  va_start(vararg, fmt);
++  std::string result = FormatString(fmt, vararg);
++  va_end(vararg);
++  return result;
++}
++
++std::string UintToString(unsigned int value) {
++  return StringPrintf("%u", value);
++}
++
++std::string DoubleToString(double value) {
++  return StringPrintf("%.10lf", value);
++}
++
++}
++
+ std::string ResultsToString(const std::string& measurement,
+                             const std::string& modifier,
+                             const std::string& trace,

tests/perf_tests/third_party/perf/perf_test.cc

+// 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.
+
+#include "perf_test.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <vector>
+
+namespace {
+
+namespace base {
+
+std::string FormatString(const char *fmt, va_list vararg) {
+  static std::vector<char> buffer(512);
+
+  // Attempt to just print to the current buffer
+  int len = vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
+  if (len < 0 || static_cast<size_t>(len) >= buffer.size()) {
+    // Buffer was not large enough, calculate the required size and resize the buffer
+    len = vsnprintf(NULL, 0, fmt, vararg);
+    buffer.resize(len + 1);
+
+    // Print again
+    vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
+  }
+
+  return std::string(buffer.data(), len);
+}
+
+std::string StringPrintf(const char *fmt, ...) {
+  va_list vararg;
+  va_start(vararg, fmt);
+  std::string result = FormatString(fmt, vararg);
+  va_end(vararg);
+  return result;
+}
+
+std::string UintToString(unsigned int value) {
+  return StringPrintf("%u", value);
+}
+
+std::string DoubleToString(double value) {
+  return StringPrintf("%.10lf", value);
+}
+
+}
+
+std::string ResultsToString(const std::string& measurement,
+                            const std::string& modifier,
+                            const std::string& trace,
+                            const std::string& values,
+                            const std::string& prefix,
+                            const std::string& suffix,
+                            const std::string& units,
+                            bool important) {
+  // <*>RESULT <graph_name>: <trace_name>= <value> <units>
+  // <*>RESULT <graph_name>: <trace_name>= {<mean>, <std deviation>} <units>
+  // <*>RESULT <graph_name>: <trace_name>= [<value>,value,value,...,] <units>
+  return base::StringPrintf("%sRESULT %s%s: %s= %s%s%s %s\n",
+         important ? "*" : "", measurement.c_str(), modifier.c_str(),
+         trace.c_str(), prefix.c_str(), values.c_str(), suffix.c_str(),
+         units.c_str());
+}
+
+void PrintResultsImpl(const std::string& measurement,
+                      const std::string& modifier,
+                      const std::string& trace,
+                      const std::string& values,
+                      const std::string& prefix,
+                      const std::string& suffix,
+                      const std::string& units,
+                      bool important) {
+  fflush(stdout);
+  printf("%s", ResultsToString(measurement, modifier, trace, values,
+                               prefix, suffix, units, important).c_str());
+  fflush(stdout);
+}
+
+}  // namespace
+
+namespace perf_test {
+
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 size_t value,
+                 const std::string& units,
+                 bool important) {
+  PrintResultsImpl(measurement,
+                   modifier,
+                   trace,
+                   base::UintToString(static_cast<unsigned int>(value)),
+                   std::string(),
+                   std::string(),
+                   units,
+                   important);
+}
+
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 double value,
+                 const std::string& units,
+                 bool important) {
+  PrintResultsImpl(measurement,
+                   modifier,
+                   trace,
+                   base::DoubleToString(value),
+                   std::string(),
+                   std::string(),
+                   units,
+                   important);
+}
+
+void AppendResult(std::string& output,
+                  const std::string& measurement,
+                  const std::string& modifier,
+                  const std::string& trace,
+                  size_t value,
+                  const std::string& units,
+                  bool important) {
+  output += ResultsToString(
+      measurement,
+      modifier,
+      trace,
+      base::UintToString(static_cast<unsigned int>(value)),
+      std::string(),
+      std::string(),
+      units,
+      important);
+}
+
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 const std::string& value,
+                 const std::string& units,
+                 bool important) {
+  PrintResultsImpl(measurement,
+                   modifier,
+                   trace,
+                   value,
+                   std::string(),
+                   std::string(),
+                   units,
+                   important);
+}
+
+void AppendResult(std::string& output,
+                  const std::string& measurement,
+                  const std::string& modifier,
+                  const std::string& trace,
+                  const std::string& value,
+                  const std::string& units,
+                  bool important) {
+  output += ResultsToString(measurement,
+                            modifier,
+                            trace,
+                            value,
+                            std::string(),
+                            std::string(),
+                            units,
+                            important);
+}
+
+void PrintResultMeanAndError(const std::string& measurement,
+                             const std::string& modifier,
+                             const std::string& trace,
+                             const std::string& mean_and_error,
+                             const std::string& units,
+                             bool important) {
+  PrintResultsImpl(measurement, modifier, trace, mean_and_error,
+                   "{", "}", units, important);
+}
+
+void AppendResultMeanAndError(std::string& output,
+                              const std::string& measurement,
+                              const std::string& modifier,
+                              const std::string& trace,
+                              const std::string& mean_and_error,
+                              const std::string& units,
+                              bool important) {
+  output += ResultsToString(measurement, modifier, trace, mean_and_error,
+                            "{", "}", units, important);
+}
+
+void PrintResultList(const std::string& measurement,
+                     const std::string& modifier,
+                     const std::string& trace,
+                     const std::string& values,
+                     const std::string& units,
+                     bool important) {
+  PrintResultsImpl(measurement, modifier, trace, values,
+                   "[", "]", units, important);
+}
+
+void AppendResultList(std::string& output,
+                      const std::string& measurement,
+                      const std::string& modifier,
+                      const std::string& trace,
+                      const std::string& values,
+                      const std::string& units,
+                      bool important) {
+  output += ResultsToString(measurement, modifier, trace, values,
+                            "[", "]", units, important);
+}
+
+void PrintSystemCommitCharge(const std::string& test_name,
+                             size_t charge,
+                             bool important) {
+  PrintSystemCommitCharge(stdout, test_name, charge, important);
+}
+
+void PrintSystemCommitCharge(FILE* target,
+                             const std::string& test_name,
+                             size_t charge,
+                             bool important) {
+  fprintf(target, "%s", SystemCommitChargeToString(test_name, charge,
+                                                   important).c_str());
+}
+
+std::string SystemCommitChargeToString(const std::string& test_name,
+                                       size_t charge,
+                                       bool important) {
+  std::string trace_name(test_name);
+  std::string output;
+  AppendResult(output,
+               "commit_charge",
+               std::string(),
+               "cc" + trace_name,
+               charge,
+               "kb",
+               important);
+  return output;
+}
+
+}  // namespace perf_test

tests/perf_tests/third_party/perf/perf_test.h

+// 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 TESTING_PERF_PERF_TEST_H_
+#define TESTING_PERF_PERF_TEST_H_
+
+#include <string>
+
+namespace perf_test {
+
+// Prints numerical information to stdout in a controlled format, for
+// post-processing. |measurement| is a description of the quantity being
+// measured, e.g. "vm_peak"; |modifier| is provided as a convenience and
+// will be appended directly to the name of the |measurement|, e.g.
+// "_browser"; |trace| is a description of the particular data point, e.g.
+// "reference"; |value| is the measured value; and |units| is a description
+// of the units of measure, e.g. "bytes". If |important| is true, the output
+// line will be specially marked, to notify the post-processor. The strings
+// may be empty.  They should not contain any colons (:) or equals signs (=).
+// A typical post-processing step would be to produce graphs of the data
+// produced for various builds, using the combined |measurement| + |modifier|
+// string to specify a particular graph and the |trace| to identify a trace
+// (i.e., data series) on that graph.
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 size_t value,
+                 const std::string& units,
+                 bool important);
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 double value,
+                 const std::string& units,
+                 bool important);
+
+void AppendResult(std::string& output,
+                  const std::string& measurement,
+                  const std::string& modifier,
+                  const std::string& trace,
+                  size_t value,
+                  const std::string& units,
+                  bool important);
+
+// Like the above version of PrintResult(), but takes a std::string value
+// instead of a size_t.
+void PrintResult(const std::string& measurement,
+                 const std::string& modifier,
+                 const std::string& trace,
+                 const std::string& value,
+                 const std::string& units,
+                 bool important);
+
+void AppendResult(std::string& output,
+                  const std::string& measurement,
+                  const std::string& modifier,
+                  const std::string& trace,
+                  const std::string& value,
+                  const std::string& units,
+                  bool important);
+
+// Like PrintResult(), but prints a (mean, standard deviation) result pair.
+// The |<values>| should be two comma-separated numbers, the mean and
+// standard deviation (or other error metric) of the measurement.
+void PrintResultMeanAndError(const std::string& measurement,
+                             const std::string& modifier,
+                             const std::string& trace,
+                             const std::string& mean_and_error,
+                             const std::string& units,
+                             bool important);
+
+void AppendResultMeanAndError(std::string& output,
+                              const std::string& measurement,
+                              const std::string& modifier,
+                              const std::string& trace,
+                              const std::string& mean_and_error,
+                              const std::string& units,
+                              bool important);
+
+// Like PrintResult(), but prints an entire list of results. The |values|
+// will generally be a list of comma-separated numbers. A typical
+// post-processing step might produce plots of their mean and standard
+// deviation.
+void PrintResultList(const std::string& measurement,
+                     const std::string& modifier,
+                     const std::string& trace,
+                     const std::string& values,
+                     const std::string& units,
+                     bool important);
+
+void AppendResultList(std::string& output,
+                      const std::string& measurement,
+                      const std::string& modifier,
+                      const std::string& trace,
+                      const std::string& values,
+                      const std::string& units,
+                      bool important);
+
+// Prints memory commit charge stats for use by perf graphs.
+void PrintSystemCommitCharge(const std::string& test_name,
+                             size_t charge,
+                             bool important);
+
+void PrintSystemCommitCharge(FILE* target,
+                             const std::string& test_name,
+                             size_t charge,
+                             bool important);
+
+std::string SystemCommitChargeToString(const std::string& test_name,
+                                       size_t charge,
+                                       bool important);
+
+}  // namespace perf_test
+
+#endif  // TESTING_PERF_PERF_TEST_H_

tests/tests.gyp

@@ -191,6 +191,8 @@
                         'perf_tests/SimpleBenchmarks.cpp',
                         'perf_tests/TexSubImage.cpp',
                         'perf_tests/TexSubImage.h',
+                        'perf_tests/third_party/perf/perf_test.cc',
+                        'perf_tests/third_party/perf/perf_test.h',
                     ],
                 },