bug 1373135 - Mark wr_thread_pool_delete destructor-safe. r=kats

gfx/webrender_bindings/src/bindings.rs

@@ -890,6 +890,7 @@ pub unsafe extern "C" fn wr_thread_pool_new() -> *mut WrThreadPool {
     Box::into_raw(Box::new(WrThreadPool(workers)))
 }
 
+/// cbindgen:postfix=WR_DESTRUCTOR_SAFE_FUNC
 #[no_mangle]
 pub unsafe extern "C" fn wr_thread_pool_delete(thread_pool: *mut WrThreadPool) {
     Box::from_raw(thread_pool);

gfx/webrender_bindings/webrender_ffi_generated.h

@@ -936,7 +936,7 @@ WR_FUNC;
 
 WR_INLINE
 void wr_thread_pool_delete(WrThreadPool *aThreadPool)
-WR_FUNC;
+WR_DESTRUCTOR_SAFE_FUNC;
 
 WR_INLINE
 WrThreadPool* wr_thread_pool_new()