content/browser/profiler_message_filter.h

// Copyright (c) 2012 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_PROFILER_MESSAGE_FILTER_H_
#define CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_

#include <string>

#include "content/public/browser/browser_message_filter.h"
#include "content/public/common/process_type.h"

namespace tracked_objects {
struct ProcessDataSnapshot;
}

namespace content {

// This class sends and receives profiler messages in the browser process.
class ProfilerMessageFilter : public BrowserMessageFilter {
 public:
  explicit ProfilerMessageFilter(content::ProcessType process_type);

  // BrowserMessageFilter implementation.
  void OnChannelConnected(int32 peer_pid) override;

  // BrowserMessageFilter implementation.
  bool OnMessageReceived(const IPC::Message& message) override;

 protected:
  ~ProfilerMessageFilter() override;

 private:
  // Message handlers.
  void OnChildProfilerData(
      int sequence_number,
      const tracked_objects::ProcessDataSnapshot& profiler_data);

#if defined(USE_TCMALLOC)
  void OnTcmallocStats(const std::string& output);
#endif

  content::ProcessType process_type_;

  DISALLOW_COPY_AND_ASSIGN(ProfilerMessageFilter);
};

}  // namespace content

#endif  // CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_