Import wpt@503f5b5f78ec4e87d144f78609f363f0ed0ea8db

third_party/WebKit/LayoutTests/external/wpt/storage/interfaces.idl

Index: third_party/WebKit/LayoutTests/external/wpt/storage/interfaces.idl
diff --git a/third_party/WebKit/LayoutTests/external/wpt/storage/interfaces.idl b/third_party/WebKit/LayoutTests/external/wpt/storage/interfaces.idl
new file mode 100644
index 0000000000000000000000000000000000000000..4967404225ee150bd383df48845b0f5702eccaa7
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/storage/interfaces.idl
@@ -0,0 +1,22 @@
+[SecureContext,
+ NoInterfaceObject,
+ Exposed=(Window,Worker)]
+interface NavigatorStorage {
+  readonly attribute StorageManager storage;
+};
+Navigator implements NavigatorStorage;
+WorkerNavigator implements NavigatorStorage;
+
+[SecureContext,
+ Exposed=(Window,Worker)]
+interface StorageManager {
+  Promise<boolean> persisted();
+  [Exposed=Window] Promise<boolean> persist();
+
+  Promise<StorageEstimate> estimate();
+};
+
+dictionary StorageEstimate {
+  unsigned long long usage;
+  unsigned long long quota;
+};