| // Copyright 2020 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. |
| |
| syntax = "proto3"; |
| |
| package org.chromium.android_webview.proto; |
| |
| option optimize_for = LITE_RUNTIME; // TODO(crbug/800281): Remove this after proto 4.0 |
| option java_package = "org.chromium.android_webview.proto"; |
| |
| // WebView uses HistogramRecord to serialize a histogram record that |
| // MetricsBridgeService receives to a file and retrieve it back. These |
| // histogram records are recorded in non-embedded WebView processes. |
| // |
| // Next tag: 9 |
| message HistogramRecord { |
| // Next tag: 5 |
| enum RecordType { |
| HISTOGRAM_BOOLEAN = 0; |
| HISTOGRAM_EXPONENTIAL = 1; |
| HISTOGRAM_LINEAR = 2; |
| HISTOGRAM_SPARSE = 3; |
| USER_ACTION = 4; |
| } |
| RecordType record_type = 1; |
| |
| // The name of the histogram |
| string histogram_name = 2; |
| |
| // The sample to be recorded, for HISTOGRAM_BOOLEAN it's either 0 for false |
| // and 1 for true. |
| int32 sample = 3; |
| |
| // The following fields are only used by HISTOGRAM_EXPONENTIAL and |
| // HISTOGRAM_LINEAR See the docs for |
| // org.chromium.base.metrics.UmaRecorder#recordExponentialHistogram |
| // and recordLinearHistogram for more info on these fields. |
| |
| // the smallest value recorded in the first bucket; should be greater than |
| // zero. |
| int32 min = 4; |
| // the smallest value recorded in the overflow bucket. |
| int32 max = 5; |
| // number of histogram buckets: Two buckets are used for underflow and |
| // overflow, and the remaining buckets cover the range [min, max); |
| // numBuckets should be 100 or less. |
| int32 num_buckets = 6; |
| |
| // Metadata for the histogram record. |
| // Next tag: 2 |
| message Metadata { |
| // The time in millis when the histogram is received by the |
| // AwNonEmbeddedUmaRecorder |
| int64 time_recorded = 1; |
| } |
| Metadata metadata = 7; |
| |
| // Used for |record_type| == USER_ACTION only. |
| int64 elapsed_realtime_millis = 8; |
| } |