content/public/browser/profiler_subscriber.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 CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_
   6 #define CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_
   7
   8 #include "content/common/content_export.h"
   9
  10 namespace tracked_objects {
  11 struct ProcessDataSnapshot;
  12 }
  13
  14 namespace content {
  15
  16 // Objects interested in receiving profiler data derive from ProfilerSubscriber.
  17 class CONTENT_EXPORT ProfilerSubscriber {
  18  public:
  19   // Send number of pending processes to subscriber. |end| is set to true if it
  20   // is the last time. This is called on the UI thread.
  21   virtual void OnPendingProcesses(int sequence_number,
  22                                   int pending_processes,
  23                                   bool end) = 0;
  24
  25   // Send |profiler_data| back to subscriber.
  26   // This is called on the UI thread.
  27   virtual void OnProfilerDataCollected(
  28       int sequence_number,
  29       const tracked_objects::ProcessDataSnapshot& profiler_data,
  30       int process_type) = 0;
  31
  32  protected:
  33   virtual ~ProfilerSubscriber() {}
  34 };
  35
  36 }  // namespace content
  37
  38 #endif  // CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_