Sorry, I completely forgot that there is an alternative route for engine experiments. There is an [`ExperimentationDelegate`][0] on the `GeckoRuntime`, that can fetch the experiment data from the embedding application. This might reduce the steps needed for running the kinds of experiments that you want, but this issue is probably still valid to see if this option can also be improved. [0]: https://mozilla.github.io/geckoview/javadoc/mozilla-central/org/mozilla/geckoview/ExperimentDelegate.html
Bug 1895714 Comment 1 Edit History
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Sorry, I completely forgot that there is an alternative route for engine experiments. There is an [`ExperimentDelegate`][0] on the `GeckoRuntime`, that can fetch the experiment data from the embedding application. This might reduce the steps needed for running the kinds of experiments that you want, but this issue is probably still valid to see if this option can also be improved. [0]: https://mozilla.github.io/geckoview/javadoc/mozilla-central/org/mozilla/geckoview/ExperimentDelegate.html