frontend-utils: Move DiskStorageBackend from desktop

Cargo.lock

@@ -4381,6 +4381,7 @@ dependencies = [
 name = "ruffle_frontend_utils"
 version = "0.1.0"
 dependencies = [
+ "ruffle_core",
  "tempfile",
  "thiserror",
  "toml_edit 0.22.9",

desktop/src/backends.rs

@@ -2,12 +2,10 @@ mod audio;
 mod external_interface;
 mod fscommand;
 mod navigator;
-mod storage;
 mod ui;
 
 pub use audio::CpalAudioBackend;
 pub use external_interface::DesktopExternalInterfaceProvider;
 pub use fscommand::DesktopFSCommandProvider;
 pub use navigator::ExternalNavigatorBackend;
-pub use storage::DiskStorageBackend;
 pub use ui::DesktopUiBackend;

desktop/src/preferences/storage.rs

@@ -1,5 +1,6 @@
-use crate::{backends::DiskStorageBackend, player::PlayerOptions};
+use crate::player::PlayerOptions;
 use ruffle_core::backend::storage::MemoryStorageBackend;
+use ruffle_frontend_utils::backends::storage::DiskStorageBackend;
 use std::str::FromStr;
 
 #[derive(clap::ValueEnum, Copy, Clone, PartialEq, Eq, Debug, Default)]

frontend-utils/Cargo.toml

@@ -17,6 +17,7 @@ tracing = { workspace = true }
 thiserror = { workspace = true }
 zip = "0.6.6"
 urlencoding = "2.1.3"
+ruffle_core = { path = "../core", default-features = false }
 
 [dev-dependencies]
 tempfile = "3"

frontend-utils/src/backends.rs

@@ -0,0 +1 @@
+pub mod storage;

frontend-utils/src/lib.rs

@@ -3,6 +3,8 @@ pub mod bundle;
 pub mod parse;
 pub mod write;
 
+pub mod backends;
+
 use std::borrow::Cow;
 use url::Url;