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- // Copyright 2017 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 CHROMECAST_BASE_CAST_FEATURES_H_
- #define CHROMECAST_BASE_CAST_FEATURES_H_
- #include <cstdint>
- #include <memory>
- #include <string>
- #include <unordered_set>
- #include <vector>
- #include "base/feature_list.h"
- #include "base/values.h"
- namespace chromecast {
- // Add Cast Features here.
- extern const base::Feature kAllowUserMediaAccess;
- extern const base::Feature kEnableQuic;
- extern const base::Feature kTripleBuffer720;
- extern const base::Feature kSingleBuffer;
- extern const base::Feature kDisableIdleSocketsCloseOnMemoryPressure;
- extern const base::Feature kEnableGeneralAudienceBrowsing;
- extern const base::Feature kEnableSideGesturePassThrough;
- extern const base::Feature kEnableChromeAudioManagerAndroid;
- extern const base::Feature kEnableCastAudioOutputDevice;
- // Get an iterable list of all of the cast features for checking all features as
- // a collection.
- const std::vector<const base::Feature*>& GetFeatures();
- // Below are utilities needed by the Cast receiver to persist feature
- // information. Client code which is simply querying the status of a feature
- // will not need to use these utilities.
- // Initialize the global base::FeatureList instance, taking into account
- // overrides from DCS and the command line. |dcs_features| and
- // |dcs_experiment_ids| are read from the PrefService in the browser process.
- // |cmd_line_enable_features| and |cmd_line_disable_features| should be passed
- // to this function, unmodified from the command line. |extra_enable_features|
- // should contain any extra features to be enabled.
- //
- // This function should be called before the browser's main loop. After this is
- // called, the other functions in this file may be called on any thread.
- // TODO(juke): Keep type info of params by passing in base::flat_map and
- // std::vector instead of base::Value.
- void InitializeFeatureList(const base::Value::Dict& dcs_features,
- const base::Value::List& dcs_experiment_ids,
- const std::string& cmd_line_enable_features,
- const std::string& cmd_line_disable_features,
- const std::string& extra_enable_features,
- const std::string& extra_disable_features);
- // Determine whether or not a feature is enabled. This replaces
- // base::FeatureList::IsEnabled for Cast builds.
- bool IsFeatureEnabled(const base::Feature& feature);
- // Given a dictionary of features, create a copy that is ready to be persisted
- // to disk. Encodes all values as strings, which is how the FieldTrial
- // classes expect the param data.
- base::Value::Dict GetOverriddenFeaturesForStorage(
- const base::Value::Dict& features);
- // Query the set of experiment ids set for this run. Intended only for metrics
- // reporting. Must be called after InitializeFeatureList(). May be called on any
- // thread.
- const std::unordered_set<int32_t>& GetDCSExperimentIds();
- // Reset static state to ensure clean unittests. For tests only.
- void ResetCastFeaturesForTesting();
- // Set the response to GetFeatures(). Calls to this function should
- // be cleaned up by a call to ResetCastFeaturesForTesting() otherwise
- // your test will leak the overridden feature state.
- void SetFeaturesForTest(std::vector<const base::Feature*> features);
- } // namespace chromecast
- #endif // CHROMECAST_BASE_CAST_FEATURES_H_
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