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

modules/cachestorage/CacheStorage.idl

Index: modules/cachestorage/CacheStorage.idl
diff --git a/modules/cachestorage/CacheStorage.idl b/modules/cachestorage/CacheStorage.idl
index d0924adc7a413e442882887ba5f396e9283bca04..5749c175e8774e8c6f337001f78f9b36266d61e1 100644
--- a/modules/cachestorage/CacheStorage.idl
+++ b/modules/cachestorage/CacheStorage.idl
@@ -6,11 +6,10 @@
 [
     GarbageCollected,
     Exposed=(Window,Worker),
-    TypeChecking=Interface,
 ] interface CacheStorage {
-  [CallWith=ScriptState] Promise<boolean> has(DOMString cacheName);
-  [CallWith=ScriptState] Promise<Cache> open(DOMString cacheName);
-  [CallWith=ScriptState, ImplementedAs=deleteFunction] Promise<boolean> delete(DOMString cacheName);
-  [CallWith=ScriptState] Promise<sequence<DOMString>> keys();
+  [CallWith=ScriptState, RaisesException] Promise<boolean> has(DOMString cacheName);
+  [CallWith=ScriptState, RaisesException] Promise<Cache> open(DOMString cacheName);
+  [CallWith=ScriptState, RaisesException, ImplementedAs=deleteFunction] Promise<boolean> delete(DOMString cacheName);
+  [CallWith=ScriptState, RaisesException] Promise<sequence<DOMString>> keys();
   [CallWith=ScriptState, RaisesException] Promise<Response> match(RequestInfo request, optional CacheQueryOptions options);
 };