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

components/mus/public/cpp/lib/event_matcher.cc

 // Copyright 2015 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.
 
 #include "components/mus/public/cpp/event_matcher.h"
 
 namespace mus {
 
-mojom::EventMatcherPtr CreateKeyMatcher(mojom::KeyboardCode code,
-                                        mojom::EventFlags flags) {
+mojom::EventMatcherPtr CreateKeyMatcher(mojom::KeyboardCode code, int flags) {
   mojom::EventMatcherPtr matcher(mojom::EventMatcher::New());
   matcher->type_matcher = mojom::EventTypeMatcher::New();
   matcher->flags_matcher = mojom::EventFlagsMatcher::New();
   matcher->ignore_flags_matcher = mojom::EventFlagsMatcher::New();
   // Ignoring these makes most accelerator scenarios more straight forward. Code
   // that needs to check them can override this setting.
-  matcher->ignore_flags_matcher->flags =
-      static_cast<mojom::EventFlags>(mojom::EVENT_FLAGS_NUM_LOCK_ON |
-                                     mojom::EVENT_FLAGS_CAPS_LOCK_ON |
-                                     mojom::EVENT_FLAGS_SCROLL_LOCK_ON);
+  matcher->ignore_flags_matcher->flags = mojom::kEventFlagCapsLockOn |
+                                         mojom::kEventFlagScrollLockOn |
+                                         mojom::kEventFlagNumLockOn;
   matcher->key_matcher = mojom::KeyEventMatcher::New();
 
-  matcher->type_matcher->type = mus::mojom::EVENT_TYPE_KEY_PRESSED;
+  matcher->type_matcher->type = mus::mojom::EventType::KEY_PRESSED;
   matcher->flags_matcher->flags = flags;
   matcher->key_matcher->keyboard_code = code;
   return matcher;
 }
 
 }  // namespace mus