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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 COMPONENTS_METRICS_PROFILER_CONTENT_CONTENT_TRACKING_SYNCHRONIZER_DELEGATE_H_
#define COMPONENTS_METRICS_PROFILER_CONTENT_CONTENT_TRACKING_SYNCHRONIZER_DELEGATE_H_
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "components/metrics/profiler/tracking_synchronizer_delegate.h"
#include "content/public/browser/profiler_subscriber.h"
namespace metrics {
// Provides an implementation of TrackingSynchronizerDelegate for use on
// //content-based platforms. Specifically, drives the tracking of profiler data
// for child processes by interacting with content::ProfilerController.
class ContentTrackingSynchronizerDelegate : public TrackingSynchronizerDelegate,
public content::ProfilerSubscriber {
public:
~ContentTrackingSynchronizerDelegate() override;
// Creates a ContentTrackingSynchronizerDelegate that is associated with
// |synchronizer_|.
static scoped_ptr<TrackingSynchronizerDelegate> Create(
TrackingSynchronizer* synchronizer);
private:
ContentTrackingSynchronizerDelegate(TrackingSynchronizer* synchronizer);
// TrackingSynchronizerDelegate:
void GetProfilerDataForChildProcesses(int sequence_number,
int current_profiling_phase) override;
void OnProfilingPhaseCompleted(int profiling_phase) override;
// content::ProfilerSubscriber:
void OnPendingProcesses(int sequence_number,
int pending_processes,
bool end) override;
void OnProfilerDataCollected(
int sequence_number,
const tracked_objects::ProcessDataSnapshot& profiler_data,
content::ProcessType process_type) override;
TrackingSynchronizer* const synchronizer_;
DISALLOW_COPY_AND_ASSIGN(ContentTrackingSynchronizerDelegate);
};
} // namespace metrics
#endif // COMPONENTS_METRICS_PROFILER_CONTENT_CONTENT_TRACKING_SYNCHRONIZER_DELEGATE_H_
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