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
|
// 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.
#ifndef COMPONENTS_OPTIMIZATION_GUIDE_CORE_OPTIMIZATION_TARGET_MODEL_OBSERVER_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CORE_OPTIMIZATION_TARGET_MODEL_OBSERVER_H_
#include "base/files/file_path.h"
#include "base/observer_list_types.h"
#include "base/types/optional_ref.h"
#include "components/optimization_guide/core/model_info.h"
#include "components/optimization_guide/proto/models.pb.h"
namespace optimization_guide {
// Observes `optimization_guide::OptimizationGuideDecider` for updates to models
// for a particular optimization target.
class OptimizationTargetModelObserver : public base::CheckedObserver {
public:
// Invoked when a model for `optimization_target` has been updated. It is
// guaranteed that this method will only be invoked for targets that `this` is
// added as an observer for.
//
// When this observer is first added, this function will be called with the
// model if it is already on device.
//
// When model was stopped to be served from the optimization guide server, and
// removed from on-device store, this will be called with null `model_info`.
// The observers should stop using the model, and remove any persistent state
// about the `optimization_target`, if applicable.
virtual void OnModelUpdated(
proto::OptimizationTarget optimization_target,
base::optional_ref<const ModelInfo> model_info) = 0;
};
} // namespace optimization_guide
#endif // COMPONENTS_OPTIMIZATION_GUIDE_CORE_OPTIMIZATION_TARGET_MODEL_OBSERVER_H_
|
