const html/template.contentTypeSrcset

5 uses

	html/template (current package)
		attr.go#L123: 	"srcset":      contentTypeSrcset,
		content.go#L106: 	contentTypeSrcset
		content.go#L169: 			return string(s), contentTypeSrcset
		transition.go#L121: 		case contentTypeSrcset:
		url.go#L147: 	case contentTypeSrcset:

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)