Dart: Put generated .mojom.dart files under mojoms pacakge.

sky/tests/services/event-sender.sky

Index: sky/tests/services/event-sender.sky
diff --git a/sky/tests/services/event-sender.sky b/sky/tests/services/event-sender.sky
index 07ce950af837f10415ec94a08c03512b0952692d..451d0ad0b3100c70003aae34e9c10be7055db44f 100644
--- a/sky/tests/services/event-sender.sky
+++ b/sky/tests/services/event-sender.sky
@@ -4,10 +4,10 @@
 import "../resources/third_party/unittest/unittest.dart";
 import "../resources/unit.dart";
 import "dart:sky";
-import "package:mojo/input_event_constants.mojom.dart" as constants;
-import "package:mojo/input_events.mojom.dart" as events;
+import "package:mojom/mojo/input_event_constants.mojom.dart" as constants;
+import "package:mojom/mojo/input_events.mojom.dart" as events;
+import "package:mojom/sky/test_harness.mojom.dart" as harness;
 import "package:sky/framework/embedder.dart";
-import "package:sky/services/testing/test_harness.mojom.dart" as harness;
 
 void main() {
   initUnit();