|  | // | 
|  | // Copyright (c) 2015 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. | 
|  | // | 
|  |  | 
|  | #ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FIELD_TRIAL_DEFAULT_H_ | 
|  | #define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FIELD_TRIAL_DEFAULT_H_ | 
|  |  | 
|  | namespace webrtc { | 
|  | namespace field_trial { | 
|  |  | 
|  | // Optionally initialize field trial from a string. | 
|  | // This method can be called at most once before any other call into webrtc. | 
|  | // E.g. before the peer connection factory is constructed. | 
|  | // Note: trials_string must never be destroyed. | 
|  | void InitFieldTrialsFromString(const char* trials_string); | 
|  |  | 
|  | const char* GetFieldTrialString(); | 
|  |  | 
|  | }  // namespace field_trial | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FIELD_TRIAL_DEFAULT_H_ |