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::replace_core_masterbar() – Remove the default admin bar items and replace it with our own admin bar.
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
Actions::jetpack_cron_schedule() – Adds a cron schedule for regular syncing via cron, unless the schedule already exists.
Admin_Color_Schemes::register_admin_color_meta() – Makes admin_color available in users REST API endpoint.
Admin_Color_Schemes::update_admin_color_permissions_check() – Permission callback to edit the `admin_color` user meta.
amp_add_inline_css() – Older versions of AMP (0.6.2) are unable to render the markup, so we hide it Newer versions of AMP (1.4.1+) seem OK, but need the screen-reader text hidden
