This adds support for `getCanSetDefaultSearchProvider` and `setIsDefaultSearchProvider` JS functions available to Brave Search to enable quick-Brave Search-default setting when the `UseProfileWebViewConfiguration` feature flag is enabled.
This adds support for `getCanSetDefaultSearchProvider` and `setIsDefaultSearchProvider` JS functions available to Brave Search to enable quick-Brave Search-default setting when the `UseProfileWebViewConfiguration` feature flag is enabled.