fixed namespace issue

Former-commit-id: faaca3177114cba49da4215a9516f453285d0aad

extension/index.js

@@ -33,7 +33,8 @@ this.singlefile.extension = this.singlefile.extension || {
 	},
 	lib: {
 		fetch: {
-			bg: {}
+			bg: {},
+			content: {}
 		},
 		frameTree: {
 			bg: {}

extension/lib/fetch/content/content-fetch-resources.js

@@ -23,7 +23,7 @@
 
 /* global window */
 
-this.singlefile.lib.fetch.content.resources = this.singlefile.lib.fetch.content.resources || (() => {
+this.singlefile.extension.lib.fetch.content.resources = this.singlefile.extension.lib.fetch.content.resources || (() => {
 
 	const FETCH_REQUEST_EVENT = "single-file-request-fetch";
 	const FETCH_RESPONSE_EVENT = "single-file-response-fetch";

lib/index.js

@@ -23,9 +23,6 @@
 
 this.singlefile = this.singlefile || {
 	lib: {
-		fetch: {
-			content: {}
-		},
 		frameTree: {
 			content: {}
 		},

lib/single-file/single-file.js

@@ -51,7 +51,7 @@ this.singlefile.lib.SingleFile = this.singlefile.lib.SingleFile || (() => {
 		digestText
 	};
 	const SingleFile = singlefile.lib.core.getClass(singlefile.lib.util.getInstance(modules, util), singlefile.lib.vendor.cssTree);
-	const fetchResource = (singlefile.lib.fetch.content.resources && singlefile.lib.fetch.content.resources.fetch) || fetch;
+	const fetchResource = (singlefile.extension && singlefile.extension.lib.fetch.content.resources.fetch) || fetch;
 	return {
 		getClass: () => SingleFile
 	};