Big merge from experimental to bleeding edge.

tests/lib/crypto/hmac_sha1_test.dart

Index: tests/lib/crypto/hmac_sha1_test.dart
diff --git a/tests/lib/crypto/hmac_sha1_test.dart b/tests/lib/crypto/hmac_sha1_test.dart
index 1aec85d0199141b50582087d6df3ffbc0d2451bc..8a87ceb2c982f852449ca4e6f7d537592cf20fc5 100644
--- a/tests/lib/crypto/hmac_sha1_test.dart
+++ b/tests/lib/crypto/hmac_sha1_test.dart
@@ -11,7 +11,9 @@ part 'hmac_sha1_test_vectors.dart';
 
 void testStandardVectors(inputs, keys, macs) {
   for (var i = 0; i < inputs.length; i++) {
-    var d = new HMAC(new SHA1(), keys[i]).update(inputs[i]).digest();
+    var hmac = new HMAC(new SHA1(), keys[i]);
+    hmac.add(inputs[i]);
+    var d = hmac.close();
     Expect.isTrue(CryptoUtils.bytesToHex(d).startsWith(macs[i]), '$i');
   }
 }