1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
edition = "2023";
package optimization_guide.proto;
option optimize_for = LITE_RUNTIME;
option java_package = "org.chromium.components.optimization_guide.proto";
option java_outer_classname = "LoadingPredictorMetadataProto";
// The possible resource type values.
enum ResourceType {
option features.enum_type = CLOSED;
RESOURCE_TYPE_UNKNOWN = 0;
// A CSS Stylesheet, maps to ResourceType::kStylesheet in the Chromium
// repository.
RESOURCE_TYPE_CSS = 1;
// An external script, maps to ResourceType::kScript in the Chromium
// repository.
RESOURCE_TYPE_SCRIPT = 2;
}
// Metadata about a subresource present on a page.
message Resource {
// The full URL of the resource.
string url = 1 [features.utf8_validation = NONE];
// The resource type of the resource.
ResourceType resource_type = 2;
// Specifies that this resource should only be preconnected to and not
// prefetched due to low confidence that this resource will actually be
// fetched for the page load.
bool preconnect_only = 3;
}
// Optimization metadata associated with improving the loading predictor.
//
// It is only populated for the LOADING_PREDICTOR optimization type.
message LoadingPredictorMetadata {
// A set of subresources that are expected to be present, ordered roughly by
// priority.
//
// It is expected for the client to either preconnect to the subresource hosts
// or prefetch the subresources directly.
repeated Resource subresources = 1;
}
|
