mshtml: Expose window.performance property to scripts.

dlls/mshtml/htmlwindow.c

@@ -3441,11 +3441,10 @@ static void HTMLWindow_bind_event(DispatchEx *dispex, eventid_t eid)
 
 static void HTMLWindow_init_dispex_info(dispex_data_t *info, compat_mode_t compat_mode)
 {
-    /* FIXME: Expose getComputedStyle and performance once they are implemented.
+    /* FIXME: Expose getComputedStyle once it's implemented.
      * Stubs break existing web sites. */
     static const dispex_hook_t window7_hooks[] = {
         {DISPID_IHTMLWINDOW7_GETCOMPUTEDSTYLE, NULL},
-        {DISPID_IHTMLWINDOW7_PERFORMANCE, NULL},
         {DISPID_UNKNOWN}
     };
     if(compat_mode >= COMPAT_MODE_IE9)

dlls/mshtml/tests/documentmode.js

@@ -103,6 +103,8 @@ function test_window_props() {
     test_exposed("dispatchEvent", v >= 9);
     test_exposed("getSelection", v >= 9);
     test_exposed("onfocusout", v >= 9);
+    if(v >= 9) /* FIXME: native exposes it in all compat modes */
+        test_exposed("performance", true);
 
     next_test();
 }