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

components/pdf_viewer/pdf_viewer.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 <stddef.h>
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 124 matching lines @@
     DCHECK_EQ(root_, view);
     root_ = nullptr;
     bitmap_uploader_.reset();
   }
 
   // mus::InputEventHandler:
   void OnWindowInputEvent(mus::Window* view,
                           mus::mojom::EventPtr event,
                           scoped_ptr<base::Closure>* ack_callback) override {
     if (event->key_data &&
-        (event->action != mus::mojom::EVENT_TYPE_KEY_PRESSED ||
+        (event->action != mus::mojom::EventType::KEY_PRESSED ||
          event->key_data->is_char)) {
       return;
     }
 
     // TODO(rjkroege): Make panning and scrolling more performant and
     // responsive to gesture events.
     if ((event->key_data &&
-         event->key_data->windows_key_code == mus::mojom::KEYBOARD_CODE_DOWN) ||
+         event->key_data->windows_key_code == mus::mojom::KeyboardCode::DOWN) ||
         (event->pointer_data && event->pointer_data->wheel_data &&
          event->pointer_data->wheel_data->delta_y < 0)) {
       if (current_page_ < (page_count_ - 1)) {
         current_page_++;
         DrawBitmap();
       }
     } else if ((event->key_data &&
                 event->key_data->windows_key_code ==
-                    mus::mojom::KEYBOARD_CODE_UP) ||
+                    mus::mojom::KeyboardCode::UP) ||
                (event->pointer_data && event->pointer_data->wheel_data &&
                 event->pointer_data->wheel_data->delta_y > 0)) {
       if (current_page_ > 0) {
         current_page_--;
         DrawBitmap();
       }
     }
   }
 
   // web_view::mojom::FrameClient:
@@ skipping 198 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(PDFViewer);
 };
 }  // namespace
 }  // namespace pdf_viewer
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunner runner(new pdf_viewer::PDFViewer());
   return runner.Run(application_request);
 }