File: enabled_state_provider.cc

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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/metrics/enabled_state_provider.h"

#include "base/base_switches.h"
#include "base/command_line.h"

namespace metrics {

namespace {
// Some browser_tests enable metrics reporting independent of the presence of
// kForceFieldTrials:
// - MetricsServiceBrowserFilesTest.FilesRemain
// - MetricsInternalsUIBrowserTestWithLog.All
bool g_ignore_force_field_trials_for_testing = false;
}  // namespace

bool EnabledStateProvider::IsReportingEnabled() const {
  // Disable metrics reporting when field trials are forced, as otherwise this
  // would pollute experiment results in UMA. Note: This is done here and not
  // in IsConsentGiven() as we do not want this to affect field trial entropy
  // logic (i.e. high entropy source should still be used if UMA is on).
  return IsConsentGiven() &&
         (g_ignore_force_field_trials_for_testing ||
          !base::CommandLine::ForCurrentProcess()->HasSwitch(
              switches::kForceFieldTrials));
}

void EnabledStateProvider::SetIgnoreForceFieldTrialsForTesting(
    bool ignore_trials) {
  g_ignore_force_field_trials_for_testing = ignore_trials;
}

}  // namespace metrics