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// Copyright 2015 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 CONTENT_BROWSER_TRACING_POWER_TRACING_AGENT_H_
#define CONTENT_BROWSER_TRACING_POWER_TRACING_AGENT_H_
#include "base/memory/ref_counted_memory.h"
#include "base/threading/thread.h"
template <typename Type>
struct DefaultSingletonTraits;
namespace content {
class BattorPowerTraceProvider;
class PowerTracingAgent {
public:
typedef base::Callback<void(const scoped_refptr<base::RefCountedString>&)>
OutputCallback;
bool StartTracing();
void StopTracing(const OutputCallback& callback);
// Retrieve the singleton instance.
static PowerTracingAgent* GetInstance();
private:
// This allows constructor and destructor to be private and usable only
// by the Singleton class.
friend struct DefaultSingletonTraits<PowerTracingAgent>;
// Constructor.
PowerTracingAgent();
virtual ~PowerTracingAgent();
void OnStopTracingDone(const OutputCallback& callback,
const scoped_refptr<base::RefCountedString>& result);
void FlushOnThread(const OutputCallback& callback);
scoped_ptr<BattorPowerTraceProvider> battor_trace_provider_;
bool is_tracing_;
DISALLOW_COPY_AND_ASSIGN(PowerTracingAgent);
};
} // namespace content
#endif // CONTENT_BROWSER_TRACING_POWER_TRACING_AGENT_H_
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