Preparing components_perftests

components/test/run_all_perftests.cc

+// Copyright (c) 2016 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 <memory>
+
+#include "base/memory/ptr_util.h"
+#include "base/test/launcher/unit_test_launcher.h"
+#include "base/test/perf_log.h"
+#include "components/test/components_test_suit.h"
+
+class ComponentsPerfTestSuite : public ComponentsTestSuite {
+ public:
+  ComponentsPerfTestSuite(int argc, char** argv)
+      : ComponentsTestSuite(argc, argv) {}
+
+  void Initialize() final {
+    ComponentsTestSuite::Initialize();
+    CHECK(base::InitPerfLog());
+  }
+
+  void Shutdown() final {
+    base::FinalizePerfLog();
+    ComponentsTestSuite::Shutdown();
+  }
+};
+
+int main(int argc, char** argv) {
+  auto test_suite = base::MakeUnique<ComponentsPerfTestSuite>(argc, argv);
+  // Raise to high priority to have more precise measurements. Since we don't
+  // aim at 1% precision, it is not necessary to run at realtime level.
+  if (!base::debug::BeingDebugged())
+    base::RaiseProcessToHighPriority();
+  return base::LaunchUnitTestsSerially(
+      argc, argv, CreateCallbackForLaunch(std::move(test_suite)));
+}