components/tracing/startup_tracing.h

   1 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_TRACING_STARTUP_TRACING_H_
   6 #define COMPONENTS_TRACING_STARTUP_TRACING_H_
   7
   8 #include "components/tracing/tracing_export.h"
   9
  10 namespace tracing {
  11
  12 // Enable startup tracing according to the trace config file. If the trace
  13 // config file does not exist, it will do nothing. This is designed to be used
  14 // by Telemetry. Telemetry will stop tracing via DevTools later. To avoid
  15 // conflict, this should not be used when --trace-startup is enabled.
  16 void TRACING_EXPORT EnableStartupTracingIfConfigFileExists();
  17
  18 }  // namespace tracing
  19
  20 #endif  // COMPONENTS_TRACING_STARTUP_TRACING_H_