grunt: extract css2js task into separate file

grunt.js

@@ -174,19 +174,4 @@ module.exports = function(grunt) {
     }
 */
   });
-
-  grunt.registerMultiTask('css2js', 'Embed CSS into JS', function() {
-    var cssContent = grunt.task.directive(grunt.file.expandFiles(this.data.src)[0], grunt.file.read);
-    var content =
-      'var css="' + cssContent + '";' +
-      'var cssTag = document.createElement("link");' +
-      'document.head = document.head || document.getElementsByTagName("head")[0];' +
-      'cssTag.href = "data:text/css,"+css;' +
-      'cssTag.rel = "stylesheet";' +
-      'document.head.appendChild(cssTag);';
-
-    grunt.file.write(this.data.dest, content);
-
-    grunt.log.writeln('File "' + this.data.dest + '" created.');
-  });
 };

grunt/tasks/grunt-css2js.js

@@ -0,0 +1,17 @@
+module.exports = function(grunt) {
+  grunt.registerMultiTask('css2js', 'Embed CSS into JS', function() {
+    var cssContent = grunt.task.directive(grunt.file.expandFiles(this.data.src)[0], grunt.file.read);
+    var content =
+      'var css="' + cssContent + '";' +
+      'var cssTag = document.createElement("link");' +
+      'document.head = document.head || document.getElementsByTagName("head")[0];' +
+      'cssTag.href = "data:text/css,"+css;' +
+      'cssTag.rel = "stylesheet";' +
+      'document.head.appendChild(cssTag);';
+
+    grunt.file.write(this.data.dest, content);
+
+    grunt.log.writeln('File "' + this.data.dest + '" created.');
+  });
+
+};