components/tracing/startup_tracing.h - Issue 1317333002: Reland [Startup Tracing] Add --trace-config-file flag

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Side by Side Diff: components/tracing/startup_tracing.h

Issue 1317333002: Reland [Startup Tracing] Add --trace-config-file flag (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: fix unit test Created 5 years, 3 months ago

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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_

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