blob: f057722e913adcac7df66f511d947eafcb1fb8ab [file] [log] [blame]
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/sync/sync_sessions_metrics_android.h"
#include <string>
#include "base/metrics/field_trial.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "components/browser_sync/browser/profile_sync_service.h"
#include "components/sync_sessions/sessions_sync_manager.h"
#include "components/sync_sessions/sync_sessions_metrics.h"
#include "jni/SyncSessionsMetrics_jni.h"
// static
bool SyncSessionsMetricsAndroid::Register(JNIEnv* env) {
return RegisterNativesImpl(env);
}
// static
void RecordYoungestForeignTabAgeOnNTP(
JNIEnv* env,
const base::android::JavaParamRef<jclass>& jcaller) {
// Unlike other platforms, Android typically disables session invalidations to
// conserve battery. This means that the foreign tab data may be quite stale.
// This would drastically distort the metric we want to emit here, however the
// revisit experiement disables said optimization, allowing us to collect
// valid data but at the cost of a much smaller sample size.
const std::string group_name =
base::FieldTrialList::FindFullName("PageRevisitInstrumentation");
bool shouldInstrument = group_name == "Enabled";
if (shouldInstrument) {
Profile* profile = ProfileManager::GetActiveUserProfile();
if (profile) {
ProfileSyncService* sync =
ProfileSyncServiceFactory::GetForProfile(profile);
if (sync) {
browser_sync::SessionsSyncManager* sessions =
static_cast<browser_sync::SessionsSyncManager*>(
sync->GetSessionsSyncableService());
if (sessions) {
sync_sessions::SyncSessionsMetrics::RecordYoungestForeignTabAgeOnNTP(
sessions);
}
}
}
}
}