Add [NewObject] and [SameObject] to various interfaces

Source/core/dom/DOMImplementation.idl

Index: Source/core/dom/DOMImplementation.idl
diff --git a/Source/core/dom/DOMImplementation.idl b/Source/core/dom/DOMImplementation.idl
index 778896c116cb5540761ef551cfabdbab879aa557..98764298beb26375612ccee6f7a654e39370df52 100644
--- a/Source/core/dom/DOMImplementation.idl
+++ b/Source/core/dom/DOMImplementation.idl
@@ -25,11 +25,11 @@
     TypeChecking=Interface,
     WillBeGarbageCollected,
 ] interface DOMImplementation {
-    [RaisesException] DocumentType createDocumentType(DOMString qualifiedName, DOMString publicId, DOMString systemId);
-    [RaisesException] XMLDocument createDocument(DOMString? namespaceURI, [TreatNullAs=EmptyString] DOMString qualifiedName, optional DocumentType? doctype = null);
+    [NewObject, RaisesException] DocumentType createDocumentType(DOMString qualifiedName, DOMString publicId, DOMString systemId);
+    [NewObject, RaisesException] XMLDocument createDocument(DOMString? namespaceURI, [TreatNullAs=EmptyString] DOMString qualifiedName, optional DocumentType? doctype = null);
     // FIXME: createHTMLDocument should return a Document. crbug.com/238368
     // FIXME: The title argument should not have a default value. crbug.com/335871
-    HTMLDocument createHTMLDocument(optional DOMString title = null);
+    [NewObject] HTMLDocument createHTMLDocument(optional DOMString title = null);
 
     // FIXME: hasFeature should take no arguments and always return true. crbug.com/429536
     [ImplementedAs=hasFeatureForBindings, MeasureAs=DOMImplementationHasFeature]