Rename Date to DateTime.

samples/third_party/dromaeo/tests/RunnerSuite.dart

Index: samples/third_party/dromaeo/tests/RunnerSuite.dart
diff --git a/samples/third_party/dromaeo/tests/RunnerSuite.dart b/samples/third_party/dromaeo/tests/RunnerSuite.dart
index ebf9e1b0abd22babc51f9e49f28089069007913b..1ba4b8157750ea63663d4018cd933e1b063b80fa 100644
--- a/samples/third_party/dromaeo/tests/RunnerSuite.dart
+++ b/samples/third_party/dromaeo/tests/RunnerSuite.dart
@@ -56,12 +56,12 @@ class Suite {
         // more smoothly as well.
         for (int i = 0; i < _N_RUNS; i++) {
           int runs = 0;
-          final int start = new Date.now().millisecondsSinceEpoch;
+          final int start = new DateTime.now().millisecondsSinceEpoch;
 
-          int cur = new Date.now().millisecondsSinceEpoch;
+          int cur = new DateTime.now().millisecondsSinceEpoch;
           while ((cur - start) < 1000) {
             test_();
-            cur = new Date.now().millisecondsSinceEpoch;
+            cur = new DateTime.now().millisecondsSinceEpoch;
             runs++;
           }