|  | /* | 
|  | *  Copyright 2017 The WebRTC project authors. All Rights Reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "api/rtc_event_log/rtc_event_log_factory.h" | 
|  |  | 
|  | #include <memory> | 
|  |  | 
|  | #include "absl/base/nullability.h" | 
|  | #include "api/environment/environment.h" | 
|  | #include "api/field_trials_view.h" | 
|  | #include "api/rtc_event_log/rtc_event_log.h" | 
|  |  | 
|  | #ifdef WEBRTC_ENABLE_RTC_EVENT_LOG | 
|  | #include "logging/rtc_event_log/rtc_event_log_impl.h" | 
|  | #endif | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | absl_nonnull std::unique_ptr<RtcEventLog> RtcEventLogFactory::Create( | 
|  | const Environment& env) const { | 
|  | #ifndef WEBRTC_ENABLE_RTC_EVENT_LOG | 
|  | return std::make_unique<RtcEventLogNull>(); | 
|  | #else | 
|  | if (env.field_trials().IsEnabled("WebRTC-RtcEventLogKillSwitch")) { | 
|  | return std::make_unique<RtcEventLogNull>(); | 
|  | } | 
|  | return std::make_unique<RtcEventLogImpl>(env); | 
|  | #endif | 
|  | } | 
|  |  | 
|  | }  // namespace webrtc |