A8C_WPCOM_Masterbar::add_my_home_submenu_item() – Adds "My Home" submenu item to sites that are eligible.
A8C_WPCOM_Masterbar::add_styles_and_scripts() – Enqueue our own CSS and JS to display our custom admin bar.
A8C_WPCOM_Masterbar::clear_core_masterbar() – Remove all existing toolbar entries from core Masterbar
A8C_WPCOM_Masterbar::create_menu_item_anchor() – Create a link tag based on information about a menu item.
A8C_WPCOM_Masterbar::is_my_home_enabled() – Calls the wpcom API to get the creation date of the site and determine if it’s eligible for the ‘My Home’ page.
A8C_WPCOM_Masterbar::maybe_logout_user_from_wpcom() – Log out from WordPress.com when logging out of the local site.
A8C_WPCOM_Masterbar::replace_core_masterbar() – Remove the default admin bar items and replace it with our own admin bar.
Abtest::request_variation() – Perform the request for a variation of a provided A/B test from WP.com.
Actions::add_wp_super_cache_sync_module() – Adds WP Super Cache’s sync modules to existing modules for sending.
Actions::do_cron_sync_by_type() – Try to send actions until we run out of things to send, or have to wait more than 15s before sending again, or we hit a lock or some other sending issue
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