components/metrics/call_stack_profile_metrics_provider.h

   1 // Copyright 2015 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_CALL_STACK_PROFILE_METRICS_PROVIDER_H_
   6 #define COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_
   7
   8 #include <vector>
   9
  10 #include "base/profiler/stack_sampling_profiler.h"
  11 #include "components/metrics/metrics_provider.h"
  12
  13 namespace metrics {
  14 class ChromeUserMetricsExtension;
  15
  16 // Performs metrics logging for the stack sampling profiler.
  17 class CallStackProfileMetricsProvider : public MetricsProvider {
  18  public:
  19   CallStackProfileMetricsProvider();
  20   ~CallStackProfileMetricsProvider() override;
  21
  22   // MetricsProvider:
  23   void ProvideGeneralMetrics(ChromeUserMetricsExtension* uma_proto) override;
  24
  25   // Uses |profiles| as the source data for the next invocation of
  26   // ProvideGeneralMetrics, rather than sourcing them from the
  27   // StackSamplingProfiler.
  28   void SetSourceProfilesForTesting(
  29       const std::vector<base::StackSamplingProfiler::CallStackProfile>&
  30           profiles);
  31
  32  private:
  33   std::vector<base::StackSamplingProfiler::CallStackProfile>
  34       source_profiles_for_test_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(CallStackProfileMetricsProvider);
  37 };
  38
  39 }  // namespace metrics
  40
  41 #endif  // COMPONENTS_METRICS_CALL_STACK_PROFILE_METRICS_PROVIDER_H_