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

mojo/converters/surfaces/surfaces_type_converters.cc

Index: mojo/converters/surfaces/surfaces_type_converters.cc
diff --git a/mojo/converters/surfaces/surfaces_type_converters.cc b/mojo/converters/surfaces/surfaces_type_converters.cc
index 5935acfd4dec089326fb277b7cf195d33a2a4e1d..ecf65505b7d730bd422f5da4f05eb0545ae716d2 100644
--- a/mojo/converters/surfaces/surfaces_type_converters.cc
+++ b/mojo/converters/surfaces/surfaces_type_converters.cc
@@ -21,9 +21,9 @@
 
 namespace mojo {
 
-#define ASSERT_ENUM_VALUES_EQUAL(value)                                      \
-  COMPILE_ASSERT(cc::DrawQuad::value == static_cast<cc::DrawQuad::Material>( \
-                                            MATERIAL_##value),     \
+#define ASSERT_ENUM_VALUES_EQUAL(value)                       \
+  COMPILE_ASSERT(static_cast<int32_t>(cc::DrawQuad::value) == \
+                 static_cast<int32_t>(Material::value),       \
                  value##_enum_value_matches)
 
 ASSERT_ENUM_VALUES_EQUAL(CHECKERBOARD);
@@ -39,11 +39,11 @@ ASSERT_ENUM_VALUES_EQUAL(YUV_VIDEO_CONTENT);
 
 COMPILE_ASSERT(
     cc::YUVVideoDrawQuad::REC_601 ==
-        static_cast<cc::YUVVideoDrawQuad::ColorSpace>(YUV_COLOR_SPACE_REC_601),
+        static_cast<cc::YUVVideoDrawQuad::ColorSpace>(YUVColorSpace::REC_601),
     rec_601_enum_matches);
 COMPILE_ASSERT(cc::YUVVideoDrawQuad::JPEG ==
                    static_cast<cc::YUVVideoDrawQuad::ColorSpace>(
-                       YUV_COLOR_SPACE_JPEG),
+                       YUVColorSpace::JPEG),
                rec_601_jpeg_enum_matches);
 
 namespace {
@@ -66,7 +66,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
                      cc::SharedQuadState* sqs,
                      cc::RenderPass* render_pass) {
   switch (input->material) {
-    case MATERIAL_RENDER_PASS: {
+    case Material::RENDER_PASS: {
       cc::RenderPassDrawQuad* render_pass_quad =
           render_pass->CreateAndAppendDrawQuad<cc::RenderPassDrawQuad>();
       RenderPassQuadState* render_pass_quad_state =
@@ -90,7 +90,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
           cc::FilterOperations());  // TODO(jamesr): background_filters
       break;
     }
-    case MATERIAL_SOLID_COLOR: {
+    case Material::SOLID_COLOR: {
       if (input->solid_color_quad_state.is_null())
         return false;
       cc::SolidColorDrawQuad* color_quad =
@@ -105,7 +105,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
           input->solid_color_quad_state->force_anti_aliasing_off);
       break;
     }
-    case MATERIAL_SURFACE_CONTENT: {
+    case Material::SURFACE_CONTENT: {
       if (input->surface_quad_state.is_null())
         return false;
       cc::SurfaceDrawQuad* surface_quad =
@@ -119,7 +119,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
           input->surface_quad_state->surface.To<cc::SurfaceId>());
       break;
     }
-    case MATERIAL_TEXTURE_CONTENT: {
+    case Material::TEXTURE_CONTENT: {
       TextureQuadStatePtr& texture_quad_state =
           input->texture_quad_state;
       if (texture_quad_state.is_null() ||
@@ -144,7 +144,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
           texture_quad_state->nearest_neighbor);
       break;
     }
-    case MATERIAL_TILED_CONTENT: {
+    case Material::TILED_CONTENT: {
       TileQuadStatePtr& tile_state = input->tile_quad_state;
       if (tile_state.is_null())
         return false;
@@ -162,7 +162,7 @@ bool ConvertDrawQuad(const QuadPtr& input,
                         tile_state->nearest_neighbor);
       break;
     }
-    case MATERIAL_YUV_VIDEO_CONTENT: {
+    case Material::YUV_VIDEO_CONTENT: {
       YUVVideoQuadStatePtr& yuv_state = input->yuv_video_quad_state;
       if (yuv_state.is_null())
         return false;