cc: Unify all sources of color space for YUVVideoDrawQuad

cc/ipc/quads_struct_traits.h

Index: cc/ipc/quads_struct_traits.h
diff --git a/cc/ipc/quads_struct_traits.h b/cc/ipc/quads_struct_traits.h
index ed27b9921cea6a5a3568a12cf4987923e9c558a4..66a37296001f8e448634d40e05941456c555eb07 100644
--- a/cc/ipc/quads_struct_traits.h
+++ b/cc/ipc/quads_struct_traits.h
@@ -333,14 +333,6 @@ struct StructTraits<cc::mojom::TileQuadStateDataView, cc::DrawQuad> {
 };
 
 template <>
-struct EnumTraits<cc::mojom::YUVColorSpace, cc::YUVVideoDrawQuad::ColorSpace> {
-  static cc::mojom::YUVColorSpace ToMojom(
-      cc::YUVVideoDrawQuad::ColorSpace color_space);
-  static bool FromMojom(cc::mojom::YUVColorSpace input,
-                        cc::YUVVideoDrawQuad::ColorSpace* out);
-};
-
-template <>
 struct StructTraits<cc::mojom::YUVVideoQuadStateDataView, cc::DrawQuad> {
   static const gfx::RectF& ya_tex_coord_rect(const cc::DrawQuad& input) {
     const cc::YUVVideoDrawQuad* quad =
@@ -390,13 +382,6 @@ struct StructTraits<cc::mojom::YUVVideoQuadStateDataView, cc::DrawQuad> {
     return quad->a_plane_resource_id();
   }
 
-  static cc::YUVVideoDrawQuad::ColorSpace color_space(
-      const cc::DrawQuad& input) {
-    const cc::YUVVideoDrawQuad* quad =
-        cc::YUVVideoDrawQuad::MaterialCast(&input);
-    return quad->color_space;
-  }
-
   static float resource_offset(const cc::DrawQuad& input) {
     const cc::YUVVideoDrawQuad* quad =
         cc::YUVVideoDrawQuad::MaterialCast(&input);