src/chrome/browser/metrics/metrics_service_accessor.cc

   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 #include "chrome/browser/metrics/metrics_service_accessor.h"
   6
   7 #include "chrome/browser/browser_process.h"
   8 #include "components/metrics/metrics_service.h"
   9 #include "components/metrics/metrics_service_observer.h"
  10
  11 // static
  12 void MetricsServiceAccessor::AddMetricsServiceObserver(
  13     MetricsServiceObserver* observer) {
  14   MetricsService* metrics_service = g_browser_process->metrics_service();
  15   if (metrics_service)
  16     metrics_service->AddObserver(observer);
  17 }
  18
  19 void MetricsServiceAccessor::RemoveMetricsServiceObserver(
  20     MetricsServiceObserver* observer) {
  21   MetricsService* metrics_service = g_browser_process->metrics_service();
  22   if (metrics_service)
  23     metrics_service->RemoveObserver(observer);
  24 }
  25
  26 // static
  27 bool MetricsServiceAccessor::RegisterSyntheticFieldTrial(
  28     MetricsService* metrics_service,
  29     uint32_t trial_name_hash,
  30     uint32_t group_name_hash) {
  31   if (!metrics_service)
  32     return false;
  33
  34   SyntheticTrialGroup trial_group(trial_name_hash, group_name_hash);
  35   metrics_service->RegisterSyntheticFieldTrial(trial_group);
  36   return true;
  37 }