| // 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. |
| |
| #ifndef NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_ |
| #define NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_ |
| |
| namespace net { |
| |
| // On Android, a Java counterpart will be generated for this enum. |
| // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net |
| // GENERATED_JAVA_CLASS_NAME_OVERRIDE: NetworkQualityObservationSource |
| // GENERATED_JAVA_PREFIX_TO_STRIP: NETWORK_QUALITY_OBSERVATION_SOURCE_ |
| enum NetworkQualityObservationSource { |
| // The observation was taken at the request layer, e.g., a round trip time |
| // is recorded as the time between the request being sent and the first byte |
| // being received. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_URL_REQUEST = 0, |
| |
| // The observation is taken from TCP statistics maintained by the kernel. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_TCP, |
| |
| // The observation is taken at the QUIC layer. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_QUIC, |
| |
| // The observation is a previously cached estimate of the metric. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_CACHED_ESTIMATE, |
| |
| // The observation is derived from network connection information provided |
| // by the platform. For example, typical RTT and throughput values are used |
| // for a given type of network connection. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_DEFAULT_FROM_PLATFORM, |
| |
| // The observation came from a Chromium-external source. |
| NETWORK_QUALITY_OBSERVATION_SOURCE_EXTERNAL_ESTIMATE |
| }; |
| |
| } // namespace net |
| |
| #endif // NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_ |