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| 1 // Copyright 2016 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 CHROME_BROWSER_CHROMEOS_TRACE_SYS_TRACE_AGENT_H_ |
| 6 #define CHROME_BROWSER_CHROMEOS_TRACE_SYS_TRACE_AGENT_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/macros.h" |
| 11 #include "base/task_runner.h" |
| 12 #include "base/trace_event/tracing_agent.h" |
| 13 |
| 14 namespace base { |
| 15 template <typename Type> |
| 16 struct DefaultSingletonTraits; |
| 17 } |
| 18 |
| 19 namespace chromeos { |
| 20 |
| 21 // A wrapper for controlling system tracing on Chrome OS. |
| 22 class SysTraceAgent : public base::trace_event::TracingAgent { |
| 23 public: |
| 24 // Gets the Singleton of this class. |
| 25 static SysTraceAgent* GetInstance(); |
| 26 |
| 27 // Overrides TracingAgent functions. |
| 28 std::string GetTracingAgentName() override; |
| 29 |
| 30 std::string GetTraceEventLabel() override; |
| 31 |
| 32 void StopAgentTracing(const StopAgentTracingCallback& callback) override; |
| 33 |
| 34 void StartAgentTracing(const base::trace_event::TraceConfig& trace_config, |
| 35 const StartAgentTracingCallback& callback) override; |
| 36 |
| 37 void SetStopAgentTracingTaskRunner( |
| 38 scoped_refptr<base::TaskRunner> task_runner); |
| 39 |
| 40 private: |
| 41 // This allows constructor and destructor to be private and usable only |
| 42 // by the Singleton class. |
| 43 friend struct base::DefaultSingletonTraits<SysTraceAgent>; |
| 44 |
| 45 SysTraceAgent(); |
| 46 ~SysTraceAgent() override; |
| 47 |
| 48 DISALLOW_COPY_AND_ASSIGN(SysTraceAgent); |
| 49 }; |
| 50 |
| 51 } // namespace chromeos |
| 52 |
| 53 #endif // CHROME_BROWSER_CHROMEOS_TRACE_SYS_TRACE_AGENT_H_ |
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