Rename Worklet.import() to Worklet.addModule().

third_party/WebKit/LayoutTests/csspaint/resources/test-runner-paint-helper.js

 // Given a set of 'tests', runs them in the worklet, then comparing the
 // expectedError or the expectedMessage.
 //
 // Usage:
 //   runner([{/* test1 */}, { /* test2 */}]);
 function runner(tests) {
     if (window.testRunner) {
         testRunner.waitUntilDone();
         testRunner.dumpAsText();
     }
 
     tests.reduce(function(chain, obj) {
         return chain.then(function() {
             if (obj.expectedError) {
                 console.log('The worklet should throw an error with: "' + obj.expectedError + '"');
             } else if (obj.expectedMessage) {
                 console.log('The worklet should log a warning with: "' + obj.expectedMessage + '"');
             } else {
                 console.log('The worklet should not throw an error.');
             }
             var blob = new Blob([obj.script], {type: 'text/javascript'});
-            return paintWorklet.import(URL.createObjectURL(blob));
+            return paintWorklet.addModule(URL.createObjectURL(blob));
         });
     }, Promise.resolve()).then(function() {
         if (window.testRunner) {
             testRunner.notifyDone();
         }
     });
 }