Backed out 9 changesets (bug 1800917, bug 718280) for causing xpc failures in browser/components/migration/tests/unit/test_Edge_db_migration.js CLOSED TREE

Backed out changeset d55b95d9d14f (bug 1800917)
Backed out changeset 8427f1e65df4 (bug 1800917)
Backed out changeset 2d0f77d324f2 (bug 718280)
Backed out changeset eba58fd1ed1c (bug 718280)
Backed out changeset 33027a0f9ce9 (bug 718280)
Backed out changeset 237be1f62d01 (bug 718280)
Backed out changeset 007afe158ae5 (bug 718280)
Backed out changeset f1dea7abdfb7 (bug 718280)
Backed out changeset 47e2cccd33c7 (bug 718280)

browser/components/migration/SafariProfileMigrator.sys.mjs

@@ -346,8 +346,16 @@ SearchStrings.prototype = {
  * Safari migrator
  */
 export class SafariProfileMigrator extends MigratorBase {
-  static get key() {
-    return "safari";
+  get classDescription() {
+    return "Safari Profile Migrator";
+  }
+
+  get contractID() {
+    return "@mozilla.org/profile/migrator;1?app=browser&type=safari";
+  }
+
+  get classID() {
+    return Components.ID("{4b609ecf-60b2-4655-9df4-dc149e474da1}");
   }
 
   getResources() {