chrome/browser/ui/webui/profiler_ui.h

   1 // Copyright (c) 2012 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_UI_WEBUI_PROFILER_UI_H_
   6 #define CHROME_BROWSER_UI_WEBUI_PROFILER_UI_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "components/metrics/profiler/tracking_synchronizer_observer.h"
  10 #include "content/public/browser/web_ui_controller.h"
  11
  12 // The C++ back-end for the chrome://profiler webui page.
  13 class ProfilerUI : public content::WebUIController,
  14                    public metrics::TrackingSynchronizerObserver {
  15  public:
  16   explicit ProfilerUI(content::WebUI* web_ui);
  17   ~ProfilerUI() override;
  18
  19   // Get the tracking data from TrackingSynchronizer.
  20   void GetData();
  21
  22  private:
  23   // TrackingSynchronizerObserver:
  24   void ReceivedProfilerData(
  25       const tracked_objects::ProcessDataPhaseSnapshot& process_data_phase,
  26       base::ProcessId process_id,
  27       content::ProcessType process_type,
  28       int profiling_phase,
  29       base::TimeDelta phase_start,
  30       base::TimeDelta phase_finish,
  31       const metrics::ProfilerEvents& past_events) override;
  32
  33   // Used to get |weak_ptr_| to self on the UI thread.
  34   base::WeakPtrFactory<ProfilerUI> weak_ptr_factory_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(ProfilerUI);
  37 };
  38
  39 #endif  // CHROME_BROWSER_UI_WEBUI_PROFILER_UI_H_