expose Logins keydb structs constructors

Author: jo

CHANGELOG.md

@@ -13,6 +13,7 @@
 - add checkpoint API: `set_checkpoint(checkpoint)` and `get_checkpoint()` for desktop's rolling migration
 - add `delete_many(ids)` for batch deletion within a single transaction
 - Add `count()`, `count_by_origin()` and `count_by_form_action_origin()` methods
+- expose constructors for `ManagedEncryptorDecryptor` and `NSSKeyManager`
 
 ### Sync Manager
 - Added sync settings metrics for mobile. [#6786](https://github.com/mozilla/application-services/pull/6786)

components/logins/src/encryption.rs

@@ -94,6 +94,7 @@ pub struct ManagedEncryptorDecryptor {
 }
 
 impl ManagedEncryptorDecryptor {
+    #[uniffi::constructor()]
     pub fn new(key_manager: Arc<dyn KeyManager>) -> Self {
         Self { key_manager }
     }
@@ -232,16 +233,22 @@ pub struct NSSKeyManager {
 }
 
 #[cfg(feature = "keydb")]
+#[uniffi::export]
 impl NSSKeyManager {
     /// Initialize new `NSSKeyManager` with a given `PrimaryPasswordAuthenticator`.
     /// There must be a previous initializiation of NSS before initializing
     /// `NSSKeyManager`, otherwise this panics.
+    #[uniffi::constructor()]
     pub fn new(primary_password_authenticator: Arc<dyn PrimaryPasswordAuthenticator>) -> Self {
         assert_nss_initialized();
         Self {
             primary_password_authenticator,
         }
     }
+
+    pub fn into_dyn_key_manager(self: Arc<Self>) -> Arc<dyn KeyManager> {
+        self
+    }
 }
 
 /// Identifier for the logins key, under which the key is stored in NSS.