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      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 "chrome/browser/metrics/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 chrome_browser_metrics::TrackingSynchronizerObserver {
     15  public:
     16   explicit ProfilerUI(content::WebUI* web_ui);
     17   virtual ~ProfilerUI();
     18 
     19   // Get the tracking data from TrackingSynchronizer.
     20   void GetData();
     21 
     22  private:
     23   // TrackingSynchronizerObserver:
     24   virtual void ReceivedProfilerData(
     25       const tracked_objects::ProcessDataSnapshot& profiler_data,
     26       int process_type) OVERRIDE;
     27 
     28   // Used to get |weak_ptr_| to self on the UI thread.
     29   base::WeakPtrFactory<ProfilerUI> weak_ptr_factory_;
     30 
     31   DISALLOW_COPY_AND_ASSIGN(ProfilerUI);
     32 };
     33 
     34 #endif  // CHROME_BROWSER_UI_WEBUI_PROFILER_UI_H_
     35