Implement sharing of megolm keys

src/crypto/algorithms/base.js

@@ -89,12 +89,11 @@ export {EncryptionAlgorithm}; // https://github.com/jsdoc3/jsdoc/issues/1272
 /**
  * base type for decryption implementations
  *
- * @alias module:crypto/algorithms/base.DecryptionAlgorithm
- *
  * @param {object} params parameters
  * @param {string} params.userId  The UserID for the local user
  * @param {module:crypto} params.crypto crypto core
  * @param {module:crypto/OlmDevice} params.olmDevice olm.js wrapper
+ * @param {module:base-apis~MatrixBaseApis} baseApis base matrix api interface
  * @param {string=} params.roomId The ID of the room we will be receiving
  *     from. Null for to-device events.
  */
@@ -103,6 +102,7 @@ class DecryptionAlgorithm {
         this._userId = params.userId;
         this._crypto = params.crypto;
         this._olmDevice = params.olmDevice;
+        this._baseApis = params.baseApis;
         this._roomId = params.roomId;
     }