Remove DartPackage annotation from NativeViewport and GPU mojoms

mojo/services/native_viewport/interfaces/native_viewport_event_dispatcher.mojom

Index: mojo/services/native_viewport/interfaces/native_viewport_event_dispatcher.mojom
diff --git a/mojo/services/native_viewport/interfaces/native_viewport_event_dispatcher.mojom b/mojo/services/native_viewport/interfaces/native_viewport_event_dispatcher.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..66533cf72c595864229ad9d2fb83efce9cd014ba
--- /dev/null
+++ b/mojo/services/native_viewport/interfaces/native_viewport_event_dispatcher.mojom
@@ -0,0 +1,13 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+[DartPackage="mojo_services"]
+module mojo;
+
+import "input_events/interfaces/input_events.mojom";
+
+[ServiceName="mojo::NativeViewportEventDispatcher"]
+interface NativeViewportEventDispatcher {
+  OnEvent(Event event) => ();
+};