Dartifying dart:html type names.

tests/html/audiocontext_test.dart

Index: tests/html/audiocontext_test.dart
diff --git a/tests/html/audiocontext_test.dart b/tests/html/audiocontext_test.dart
index 62367530bc9897f60f2ce5ff15bbd7f4db6f335d..e2b471e68de8d9156840947d0d7f8bc30dd276a3 100644
--- a/tests/html/audiocontext_test.dart
+++ b/tests/html/audiocontext_test.dart
@@ -21,10 +21,10 @@ main() {
       ArrayBufferView arrayBufferView = new Float32Array.fromList([]);
       try {
         // Test that native overload is chosen correctly. Native implementation
-        // should throw 'SYNTAX_ERR' DOMException because the buffer is empty.
+        // should throw 'SYNTAX_ERR' DomException because the buffer is empty.
         AudioBuffer buffer = ctx.createBuffer(arrayBufferView.buffer, false);
       } catch (e) {
-        expect(e.code, equals(DOMException.SYNTAX_ERR));
+        expect(e.code, equals(DomException.SYNTAX_ERR));
       }
   });