Onboarding/Domains: Use segment specific copy for transfer/mapping su…

…bheader

client/lib/signup/site-type.js

@@ -33,6 +33,9 @@ const getSiteTypePropertyDefaults = propertyKey =>
 			domainsStepSubheader: i18n.translate(
 				'Enter a keyword that describes your site to get started.'
 			),
+			domainsStepTransferringSubheader: i18n.translate(
+				'Use a domain you already own with your new WordPress.com site.'
+			),
 			// Site styles step
 			siteStyleSubheader: i18n.translate(
 				'This will help you get started with a theme you might like. You can change it later.'
@@ -98,6 +101,9 @@ export function getAllSiteTypes() {
 			domainsStepSubheader: i18n.translate(
 				"Enter your blog's name or some keywords that describe it to get started."
 			),
+			domainsStepTransferringSubheader: i18n.translate(
+				'Use a domain you already own with your new WordPress.com blog.'
+			),
 		},
 		{
 			id: 1, // This value must correspond with its sibling in the /segments API results

client/signup/steps/domains/index.jsx

@@ -519,17 +519,11 @@ class DomainsStep extends React.Component {
 	};
 
 	getSubHeaderText() {
-		const { siteType, translate } = this.props;
-		const onboardingSubHeaderCopy =
-			siteType && getSiteTypePropertyValue( 'slug', siteType, 'domainsStepSubheader' );
+		const { siteType, stepSectionName } = this.props;
 
-		if ( onboardingSubHeaderCopy ) {
-			return onboardingSubHeaderCopy;
-		}
-
-		return 'transfer' === this.props.stepSectionName || 'mapping' === this.props.stepSectionName
-			? translate( 'Use a domain you already own with your new WordPress.com site.' )
-			: translate( "Enter your site's name or some keywords that describe it to get started." );
+		return 'transfer' === stepSectionName || 'mapping' === stepSectionName
+			? getSiteTypePropertyValue( 'slug', siteType, 'domainsStepTransferringSubheader' )
+			: getSiteTypePropertyValue( 'slug', siteType, 'domainsStepSubheader' );
 	}
 
 	getHeaderText() {