mshtml: Implement document.lastModified.

dlls/mshtml/htmldoc.c

@@ -1086,8 +1086,14 @@ static HRESULT WINAPI HTMLDocument_get_location(IHTMLDocument2 *iface, IHTMLLoca
 static HRESULT WINAPI HTMLDocument_get_lastModified(IHTMLDocument2 *iface, BSTR *p)
 {
     HTMLDocumentNode *This = impl_from_IHTMLDocument2(iface);
-    FIXME("(%p)->(%p)\n", This, p);
-    return E_NOTIMPL;
+    nsAString nsstr;
+    nsresult nsres;
+
+    TRACE("(%p)->(%p)\n", This, p);
+
+    nsAString_Init(&nsstr, NULL);
+    nsres = nsIDOMDocument_GetLastModified(This->dom_document, &nsstr);
+    return return_nsstr(nsres, &nsstr, p);
 }
 
 static HRESULT WINAPI HTMLDocument_put_URL(IHTMLDocument2 *iface, BSTR v)

dlls/mshtml/tests/dom.js

@@ -339,6 +339,12 @@ sync_test("rects", function() {
     ok(rects.length === 0, "rect.length = " + rects.length);
 });
 
+sync_test("document_lastModified", function() {
+    // actually it seems to be rounded up from about ~250ms above a sec, but be more conservative with the check
+    var diff = Date.parse(document.lastModified) - performance.timing.navigationStart;
+    ok(diff > -1000 && diff < 1000, "lastModified too far from navigationStart: " + diff);
+});
+
 sync_test("document_owner", function() {
     var node;