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

core/frame/History.idl

Index: core/frame/History.idl
diff --git a/core/frame/History.idl b/core/frame/History.idl
index 5462033850909d3376e317015f46f12a648cdc13..bec089019f093ccccc4105629938b53832ba3a84 100644
--- a/core/frame/History.idl
+++ b/core/frame/History.idl
@@ -25,26 +25,20 @@
 
 // https://html.spec.whatwg.org/#the-history-interface
 
+enum ScrollRestoration {"auto", "manual"};
+
 [
     GarbageCollected,
 ] interface History {
-    // TODO(philipj): length is long in the spec, use that or change the spec:
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=28789
     readonly attribute unsigned long length;
+    [RuntimeEnabled=ScrollRestoration, Measure] attribute ScrollRestoration scrollRestoration;
     // TODO(philipj): The SerializedScriptValue type should be any.
     [CachedAttribute=stateChanged] readonly attribute SerializedScriptValue state;
-    // TODO(philipj): delta does not have a default value in the spec:
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=28790
     [CallWith=ExecutionContext] void go(optional long delta = 0);
     [CallWith=ExecutionContext] void back();
     [CallWith=ExecutionContext] void forward();
     // TODO(philipj): The SerializedScriptValue types should be any.
     // TODO(philipj): The title arguments should simply be 'DOMString title'.
-    // Note: The options arguments are part of the Scroll Restoration API.
-    [RaisesException] void pushState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null, optional StateOptions options);
-    [RaisesException] void replaceState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null, optional StateOptions options);
-
-    // Experimental Scroll Restoration API
-    // https://www.chromestatus.com/features/5657284784947200
-    [RuntimeEnabled=ScrollRestoration] readonly attribute StateOptions options;
+    [RaisesException] void pushState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null);
+    [RaisesException] void replaceState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null);
 };