components/metrics/profiler/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 COMPONENTS_METRICS_PROFILER_PROFILER_METRICS_PROVIDER_H_
   6 #define COMPONENTS_METRICS_PROFILER_PROFILER_METRICS_PROVIDER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "components/metrics/metrics_provider.h"
  11 #include "components/metrics/profiler/tracking_synchronizer_observer.h"
  12 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
  13 #include "content/public/common/process_type.h"
  14
  15 namespace tracked_objects {
  16 struct ProcessDataPhaseSnapshot;
  17 }
  18
  19 namespace metrics {
  20
  21 // ProfilerMetricsProvider is responsible for filling out the |profiler_event|
  22 // section of the UMA proto.
  23 class ProfilerMetricsProvider : public MetricsProvider {
  24  public:
  25   explicit ProfilerMetricsProvider(
  26       const base::Callback<bool(void)>& cellular_callback);
  27   // Creates profiler metrics provider with a null callback.
  28   ProfilerMetricsProvider();
  29   ~ProfilerMetricsProvider() override;
  30
  31   // MetricsDataProvider:
  32   void ProvideGeneralMetrics(ChromeUserMetricsExtension* uma_proto) override;
  33
  34   // Records the passed profiled data, which should be a snapshot of the
  35   // browser's profiled performance during startup for a single process.
  36   void RecordProfilerData(
  37       const tracked_objects::ProcessDataPhaseSnapshot& process_data,
  38       base::ProcessId process_id,
  39       content::ProcessType process_type,
  40       int profiling_phase,
  41       base::TimeDelta phase_start,
  42       base::TimeDelta phase_finish,
  43       const ProfilerEvents& past_events);
  44
  45  private:
  46   // Returns true if current connection type is cellular and user is assigned to
  47   // experimental group for enabled cellular uploads according to
  48   // |cellular_callback_|.
  49   bool IsCellularLogicEnabled();
  50
  51   // Saved cache of generated Profiler event protos, to be copied into the UMA
  52   // proto when ProvideGeneralMetrics() is called. The map is from a profiling
  53   // phase id to the profiler event proto that represents profiler data for the
  54   // profiling phase.
  55   std::map<int, ProfilerEventProto> profiler_events_cache_;
  56
  57   // Returns true if current connection type is cellular and user is assigned to
  58   // experimental group for enabled cellular uploads.
  59   base::Callback<bool(void)> cellular_callback_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(ProfilerMetricsProvider);
  62 };
  63
  64 }  // namespace metrics
  65
  66 #endif  // COMPONENTS_METRICS_PROFILER_PROFILER_METRICS_PROVIDER_H_