add missing symbol import
use crate::prelude::*;
use std::slice;
-use skia_bindings::{SkData, C_SkData_unref, C_SkData_ref, C_SkData_MakeWithCopy, C_SkData_MakeEmpty, C_SkData_MakeSubset, C_SkData_MakeUninitialized};
+use skia_bindings::{SkData, C_SkData_unref, C_SkData_ref, C_SkData_MakeWithCopy, C_SkData_MakeEmpty, C_SkData_MakeSubset, C_SkData_MakeUninitialized, C_SkData_MakeWithCString};
use std::ops::Deref;
use std::ffi::CStr;
