Network sync refactoring (part 5) (#11825)

* Make `chain_sync` an explicit networking parameter instead of offering factory method

* Derive `Copy` on `SyncMode` and remove cloning

substrate/client/network/src/config.rs

@@ -96,14 +96,8 @@ where
 	/// valid.
 	pub import_queue: Box<dyn ImportQueue<B>>,
 
-	/// Factory function that creates a new instance of chain sync.
-	pub create_chain_sync: Box<
-		dyn FnOnce(
-			sc_network_common::sync::SyncMode,
-			Arc<Client>,
-			Option<Arc<dyn WarpSyncProvider<B>>>,
-		) -> crate::error::Result<Box<dyn ChainSync<B>>>,
-	>,
+	/// Instance of chain sync implementation.
+	pub chain_sync: Box<dyn ChainSync<B>>,
 
 	/// Registry for recording prometheus metrics to.
 	pub metrics_registry: Option<Registry>,
@@ -138,8 +132,8 @@ where
 	/// both outgoing and incoming requests.
 	pub state_request_protocol_config: RequestResponseConfig,
 
-	/// Optional warp sync protocol support. Include protocol config and sync provider.
-	pub warp_sync: Option<(Arc<dyn WarpSyncProvider<B>>, RequestResponseConfig)>,
+	/// Optional warp sync protocol config.
+	pub warp_sync_protocol_config: Option<RequestResponseConfig>,
 }
 
 /// Role of the local node.
@@ -352,7 +346,7 @@ impl From<multiaddr::Error> for ParseErr {
 }
 
 /// Sync operation mode.
-#[derive(Clone, Debug, Eq, PartialEq)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
 pub enum SyncMode {
 	/// Full block download and verification.
 	Full,