For c++, Generate enum classes instead of enum from mojom.

services/view_manager/display_manager.cc

 // 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.
 
 #include "services/view_manager/display_manager.h"
 
 #include "base/numerics/safe_conversions.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/converters/surfaces/surfaces_type_converters.h"
 #include "mojo/public/cpp/application/application_connection.h"
@@ skipping 30 matching lines @@
   cc::SurfaceId node_id = view->surface_id();
 
   auto surface_quad_state = mojo::SurfaceQuadState::New();
   surface_quad_state->surface = mojo::SurfaceId::From(node_id);
 
   gfx::Transform node_transform;
   node_transform.Translate(absolute_bounds.x(), absolute_bounds.y());
 
   const gfx::Rect bounds_at_origin(view->bounds().size());
   auto surface_quad = mojo::Quad::New();
-  surface_quad->material = mojo::Material::MATERIAL_SURFACE_CONTENT;
+  surface_quad->material = mojo::Material::SURFACE_CONTENT;
   surface_quad->rect = mojo::Rect::From(bounds_at_origin);
   surface_quad->opaque_rect = mojo::Rect::From(bounds_at_origin);
   surface_quad->visible_rect = mojo::Rect::From(bounds_at_origin);
   surface_quad->needs_blending = true;
   surface_quad->shared_quad_state_index =
       base::saturated_cast<int32_t>(pass->shared_quad_states.size());
   surface_quad->surface_quad_state = surface_quad_state.Pass();
 
   auto sqs = CreateDefaultSQS(*mojo::Size::From(view->bounds().size()));
-  sqs->blend_mode = mojo::SK_XFERMODE_kSrcOver_Mode;
+  sqs->blend_mode = mojo::SkXfermode::kSrcOver_Mode;
   sqs->opacity = combined_opacity;
   sqs->content_to_target_transform = mojo::Transform::From(node_transform);
 
   pass->quads.push_back(surface_quad.Pass());
   pass->shared_quad_states.push_back(sqs.Pass());
 }
 
 }  // namespace
 
 DefaultDisplayManager::DefaultDisplayManager(
@@ skipping 100 matching lines @@
   metrics_.size = metrics->size.Clone();
   metrics_.device_pixel_ratio = metrics->device_pixel_ratio;
   gfx::Rect bounds(metrics_.size.To<gfx::Size>());
   connection_manager_->root()->SetBounds(bounds);
   connection_manager_->ProcessViewportMetricsChanged(metrics_, *metrics);
   native_viewport_->RequestMetrics(base::Bind(
       &DefaultDisplayManager::OnMetricsChanged, weak_factory_.GetWeakPtr()));
 }
 
 }  // namespace view_manager