Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/background_sync/SyncManager.idl

Index: modules/background_sync/SyncManager.idl
diff --git a/modules/background_sync/SyncManager.idl b/modules/background_sync/SyncManager.idl
index a8a996271f5ef079979f3b28e3d552e35a3bdbc6..16899c1916f5f57732ddf80ec645860e22c00ee3 100644
--- a/modules/background_sync/SyncManager.idl
+++ b/modules/background_sync/SyncManager.idl
@@ -12,10 +12,7 @@ enum SyncPermissionState {
     Exposed=(Window,ServiceWorker),
     GarbageCollected,
     RuntimeEnabled=BackgroundSync,
-    TypeChecking=Interface,
 ] interface SyncManager {
-    [CallWith=ScriptState,ImplementedAs=registerFunction] Promise<SyncRegistration> register([RuntimeEnabled=BackgroundSyncV2] optional SyncRegistrationOptions options);
-    [RuntimeEnabled=BackgroundSyncV2, CallWith=ScriptState] Promise<SyncRegistration> getRegistration(DOMString tag);
-    [RuntimeEnabled=BackgroundSyncV2, CallWith=ScriptState] Promise<sequence<SyncRegistration>> getRegistrations();
-    [RuntimeEnabled=BackgroundSyncV2, CallWith=ScriptState] Promise<SyncPermissionState> permissionState();
+    [MeasureAs=BackgroundSyncRegister,CallWith=(ScriptState,ExecutionContext),ImplementedAs=registerFunction] Promise<void> register(DOMString tag);
+    [CallWith=ScriptState] Promise<sequence<DOMString>> getTags();
 };