Change mojo enums to be scoped enums in the generated C++ bindings.

components/mus/public/interfaces/input_events.mojom

 // Copyright 2014 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.
 
 module mus.mojom;
 
 import "components/mus/public/interfaces/input_event_constants.mojom";
 import "components/mus/public/interfaces/input_key_codes.mojom";
 
 struct KeyData {
@@ skipping 87 matching lines @@
   float pressure;
   // |tilt_y| and |tilt_z| are in degrees.
   float tilt_y;
   float tilt_z;
 };
 
 struct Event {
   // TODO(sky): rename to type.
   EventType action;
   // TODO(sky): parts of this should move to PointerData.
-  EventFlags flags;
+  int32 flags;

[yzshen1, 2016/01/07 19:24:52]

Please add comments.

[Sam McNally, 2016/01/08 05:12:51]

Done.

   // Time in microseconds from when the platform was started.
   // This value accurately orders events w.r.t. to each other but
   // does not position them at an absolute time.
   int64 time_stamp;
   KeyData? key_data;
   PointerData? pointer_data;
 };