chrome/browser/metrics/profiler_metrics_provider.h

   1 // Copyright 2014 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_METRICS_PROFILER_METRICS_PROVIDER_H_
   6 #define CHROME_BROWSER_METRICS_PROFILER_METRICS_PROVIDER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "components/metrics/metrics_provider.h"
  10 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
  11
  12 namespace tracked_objects {
  13 struct ProcessDataSnapshot;
  14 }
  15
  16 // ProfilerMetricsProvider is responsible for filling out the |profiler_event|
  17 // section of the UMA proto.
  18 class ProfilerMetricsProvider : public metrics::MetricsProvider {
  19  public:
  20   ProfilerMetricsProvider();
  21   virtual ~ProfilerMetricsProvider();
  22
  23   // metrics::MetricsDataProvider:
  24   virtual void ProvideGeneralMetrics(
  25       metrics::ChromeUserMetricsExtension* uma_proto) OVERRIDE;
  26
  27   // Records the passed profiled data, which should be a snapshot of the
  28   // browser's profiled performance during startup for a single process.
  29   void RecordProfilerData(
  30       const tracked_objects::ProcessDataSnapshot& process_data,
  31       int process_type);
  32
  33  private:
  34   // Saved cache of generated Profiler event protos, to be copied into the UMA
  35   // proto when ProvideGeneralMetrics() is called.
  36   metrics::ProfilerEventProto profiler_event_cache_;
  37
  38   // True if this instance has recorded profiler data since the last call to
  39   // ProvideGeneralMetrics().
  40   bool has_profiler_data_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(ProfilerMetricsProvider);
  43 };
  44
  45 #endif  // CHROME_BROWSER_METRICS_PROFILER_METRICS_PROVIDER_H_